CN106817200B - Dynamic signal detection method based on multi-channel communication receiving system - Google Patents
Dynamic signal detection method based on multi-channel communication receiving system Download PDFInfo
- Publication number
- CN106817200B CN106817200B CN201710070641.8A CN201710070641A CN106817200B CN 106817200 B CN106817200 B CN 106817200B CN 201710070641 A CN201710070641 A CN 201710070641A CN 106817200 B CN106817200 B CN 106817200B
- Authority
- CN
- China
- Prior art keywords
- channel
- signal
- receiving system
- data
- communication receiving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0078—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location
- H04L1/0091—Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location arrangements specific to receivers, e.g. format detection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a dynamic signal detection method based on a multichannel communication receiving system, which comprises the steps of carrying out multi-path demodulation on dynamic signals of the multichannel communication receiving system and the like; the detection method used by the invention does not directly apply an abnormal value detection mode, thereby having good self-adaptive characteristic, being beneficial to improving the system performance, and having strong anti-interference capability during detection, so that the whole multi-channel communication receiving system has good receiving performance.
Description
Technical Field
The invention belongs to the technical field of wireless communication. In particular to a dynamic signal detection method based on a multi-channel communication receiving system.
Background
In ultra-narrow band communication, how to identify carriers is a key, and for a terminal, information can be transmitted on one subcarrier, but at a base station, the subcarrier must be detected on one frequency band. The terminal randomly selects a subcarrier to transmit information, and therefore, in extreme cases, the base station must be able to detect possible information transmission on a plurality of subcarriers at any time. In the subcarrier detection, one subcarrier has a large number of subcarriers, and the other subcarrier has a narrow bandwidth, so that the difficulty is high. At the time of treatment, a method combining feature detection and energy detection is adopted. After the energy detection, the preamble is detected to determine whether the signal is a self signal. However, in a multi-channel communication receiving system, if dynamic signals cannot be detected in time, the self-adaptive characteristic is poor, the anti-interference capability during detection is low, and the receiving performance is poor.
Disclosure of Invention
The present invention aims to overcome the above disadvantages and provide a dynamic signal detection method based on a multi-channel communication receiving system.
A dynamic signal detection method based on a multi-channel communication receiving system comprises the following steps:
carrying out multi-path demodulation on the dynamic signal of the multi-channel communication receiving system;
after multi-channel demodulation is carried out on the dynamic signals of the multi-channel communication receiving system, baseband data of each sub-channel is obtained;
judging whether effective frame information exists on each channel, if so, further carrying out synchronization and demodulation processing on the data;
when no valid information exists on a single channel, the energy on that channel is the energy of the noise, and once information is transmitted, the energy on the channel is the signal.
Further, the specific steps of performing multi-path demodulation on the dynamic signal of the multi-channel communication receiving system are as follows:
regarding an area storing received data in a memory as a circular first-in first-out queue with the depth of M, wherein 0< M < 3;
each time the direct memory access data is moved, one storage unit is consumed, and the cycle is carried out after M times of direct memory access transmission, so that the completeness of one frame of data is ensured;
and before the direct memory access transmission is completed each time, finishing the judgment and recombination of N effective frame signals, wherein 1< N < 1000.
Further, the step of determining whether valid frame information exists on each channel specifically includes:
acquiring sampling data and caching the sampling data;
detecting whether each channel has sampling data, if the sampling data exists, sending a signal to a node, judging after the node receives the signal, and if the node only receives the signal of a single information source node, directly amplifying the signal and sending the signal to a node corresponding to the next topology; otherwise, after network coding and data frame dispersion and recombination, the data frame is sent to the previous node.
Further, each time the dma data is moved to consume one memory cell, and the step of cycling after M dma transfers is specifically:
writing each frame of received data into a memory, recording the number of times of cyclic use in the memory, and updating the current data cache region according to the number of times of cyclic use;
when writing a frame of data into the memory and adding M to a writing pointer, mapping a logic address corresponding to the pointer to an updated current data buffer area address to consume a storage unit;
the loop may be performed after M dma transfers.
Further, before the completion of the access transmission of each direct memory, the completion of the decision and the reassembly of the N effective frame signals specifically comprises:
carrying out channel coding, dispersive recombination and modulation on a frame signal to be transmitted, and transmitting the modulated signal to a node;
after receiving the signal, the node makes a decision, and if only the signal of a single information source node is received, the signal is directly amplified and then is sent to the node corresponding to the next topology; otherwise, after network coding and data frame dispersion and recombination, the data frame is sent to the previous node.
The detection method used by the invention does not directly apply an abnormal value detection mode, thereby having good self-adaptive characteristic, being beneficial to improving the system performance, and having strong anti-interference capability during detection, so that the whole multi-channel communication receiving system has good receiving performance.
Drawings
FIG. 1 is a schematic flow chart of the method of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples:
a dynamic signal detection method based on a multi-channel communication receiving system comprises the following steps:
carrying out multi-path demodulation on the dynamic signal of the multi-channel communication receiving system;
after multi-channel demodulation is carried out on the dynamic signals of the multi-channel communication receiving system, baseband data of each sub-channel is obtained;
judging whether effective frame information exists on each channel, if so, further carrying out synchronization and demodulation processing on the data;
when no valid information exists on a single channel, the energy on that channel is the energy of the noise, and once information is transmitted, the energy on the channel is the signal.
The specific steps of performing multi-path demodulation on the dynamic signal of the multi-channel communication receiving system are as follows:
regarding an area storing received data in a memory as a circular first-in first-out queue with the depth of M, wherein 0< M < 3;
each time the direct memory access data is moved, one storage unit is consumed, and the cycle is carried out after M times of direct memory access transmission, so that the completeness of one frame of data is ensured;
and before the direct memory access transmission is completed each time, finishing the judgment and recombination of N effective frame signals, wherein 1< N < 1000.
The step of judging whether valid frame information exists on each channel specifically comprises:
acquiring sampling data and caching the sampling data;
detecting whether each channel has sampling data, if the sampling data exists, sending a signal to a node, judging after the node receives the signal, and if the node only receives the signal of a single information source node, directly amplifying the signal and sending the signal to a node corresponding to the next topology; otherwise, after network coding and data frame dispersion and recombination, the data frame is sent to the previous node.
The step of circulating after M times of direct memory access transmission specifically comprises the following steps:
writing each frame of received data into a memory, recording the number of times of cyclic use in the memory, and updating the current data cache region according to the number of times of cyclic use;
when writing a frame of data into the memory and adding M to a writing pointer, mapping a logic address corresponding to the pointer to an updated current data buffer area address to consume a storage unit;
the loop may be performed after M dma transfers.
Before the access transmission of each direct memory is completed, the decision and recombination of N effective frame signals are specifically completed as follows:
carrying out channel coding, dispersive recombination and modulation on a frame signal to be transmitted, and transmitting the modulated signal to a node;
after receiving the signal, the node makes a decision, and if only the signal of a single information source node is received, the signal is directly amplified and then is sent to the node corresponding to the next topology; otherwise, after network coding and data frame dispersion and recombination, the data frame is sent to the previous node.
Claims (2)
1. A dynamic signal detection method based on a multi-channel communication receiving system is characterized by comprising the following steps:
carrying out multi-path demodulation on the dynamic signal of the multi-channel communication receiving system;
after multi-channel demodulation is carried out on the dynamic signals of the multi-channel communication receiving system, baseband data of each sub-channel is obtained;
judging whether effective frame signals exist on each channel, and if the effective frame signals exist, further carrying out synchronization and demodulation processing on data;
when no effective frame signal exists on a single channel, the energy on the channel is the energy of noise, and once the effective frame signal is transmitted, the energy on the channel is a signal; the specific steps of performing multi-path demodulation on the dynamic signal of the multi-channel communication receiving system are as follows:
regarding an area storing received data in a memory as a circular first-in first-out queue with the depth of M, wherein 0< M < 3;
each time the direct memory access data is moved, one storage unit is consumed, and the cycle is carried out after M times of direct memory access transmission, so that the completeness of one frame of data is ensured;
and before the direct memory access transmission is completed each time, finishing the judgment and recombination of N effective frame signals, wherein 1< N < 1000.
2. The dynamic signal detection method based on the multi-channel communication receiving system as claimed in claim 1, wherein the step of completing the decision and reassembly of the N valid frame signals before the completion of each dma transmission is specifically:
carrying out channel coding, dispersive recombination and modulation on a frame signal to be transmitted, and transmitting the modulated signal to a node;
after receiving the signal, the node makes a decision, and if only the signal of a single information source node is received, the signal is directly amplified and then is sent to the node corresponding to the next topology; otherwise, after network coding and data frame dispersion and recombination, the data frame is sent to the previous node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070641.8A CN106817200B (en) | 2017-02-09 | 2017-02-09 | Dynamic signal detection method based on multi-channel communication receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070641.8A CN106817200B (en) | 2017-02-09 | 2017-02-09 | Dynamic signal detection method based on multi-channel communication receiving system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106817200A CN106817200A (en) | 2017-06-09 |
| CN106817200B true CN106817200B (en) | 2020-05-05 |
Family
ID=59112570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070641.8A Active CN106817200B (en) | 2017-02-09 | 2017-02-09 | Dynamic signal detection method based on multi-channel communication receiving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106817200B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617838B (en) * | 2019-02-22 | 2021-02-26 | 盛科网络（苏州）有限公司 | Multi-channel message convergence sharing memory management method and system |
| CN113556404A (en) * | 2021-08-03 | 2021-10-26 | 广东九博科技股份有限公司 | Communication method and system between single disks in equipment |
| CN113613303B (en) * | 2021-08-09 | 2022-08-26 | 电子科技大学 | Millimeter wave communication transmission method based on multichannel technology |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1545349A (en) * | 2003-11-20 | 2004-11-10 | 中兴通讯股份有限公司 | A bit synchronizer for difference offset four-phase keying demodulator |
| CN101022288A (en) * | 2007-04-09 | 2007-08-22 | 互芯集成电路（北京）有限公司 | Dynamic multi-path detecting method and device in code division multiple access communication system |
| US7839011B2 (en) * | 2007-02-09 | 2010-11-23 | Siemens Medical Solutions Usa, Inc. | Method and apparatus for signal transmission with isolation in medical devices |
| CN102025424A (en) * | 2010-11-30 | 2011-04-20 | 中国船舶重工集团公司第七一五研究所 | Vector sensor-based orthogonal frequency division multiplexing (OFDM) underwater sound communication method |
| TW201118379A (en) * | 2009-11-17 | 2011-06-01 | Yuan-Jay Wang | A constant force fuzzy controller for contact mode atomic force microscopes |
| CN102170715A (en) * | 2011-03-30 | 2011-08-31 | 东方通信股份有限公司 | Mobile communication base station transceiver employing software radio technology and signal processing method |
| WO2012050681A3 (en) * | 2010-09-29 | 2012-06-07 | Motorola Solutions, Inc. | Adaptive off-channel detector for receivers |
| CA2812797A1 (en) * | 2012-04-11 | 2013-10-11 | Averna Technologies Inc. | Improved global navigation satellites system (gnss) recording system |
| CN104407532A (en) * | 2014-09-30 | 2015-03-11 | 清华大学 | Digital demodulator based on industrial control computer platform |
| CN104954059A (en) * | 2014-03-31 | 2015-09-30 | 深圳市中兴微电子技术有限公司 | Method for receiving multiple channel signals and device thereof |
| CN106209722A (en) * | 2016-06-15 | 2016-12-07 | 电子科技大学 | A kind of multi-path digital down conversion method for baseband signal receiver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9136891B2 (en) * | 2011-12-12 | 2015-09-15 | John W. Bogdan | Adaptive data decoding |
-
2017
- 2017-02-09 CN CN201710070641.8A patent/CN106817200B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1545349A (en) * | 2003-11-20 | 2004-11-10 | 中兴通讯股份有限公司 | A bit synchronizer for difference offset four-phase keying demodulator |
| US7839011B2 (en) * | 2007-02-09 | 2010-11-23 | Siemens Medical Solutions Usa, Inc. | Method and apparatus for signal transmission with isolation in medical devices |
| CN101022288A (en) * | 2007-04-09 | 2007-08-22 | 互芯集成电路（北京）有限公司 | Dynamic multi-path detecting method and device in code division multiple access communication system |
| TW201118379A (en) * | 2009-11-17 | 2011-06-01 | Yuan-Jay Wang | A constant force fuzzy controller for contact mode atomic force microscopes |
| WO2012050681A3 (en) * | 2010-09-29 | 2012-06-07 | Motorola Solutions, Inc. | Adaptive off-channel detector for receivers |
| CN102025424A (en) * | 2010-11-30 | 2011-04-20 | 中国船舶重工集团公司第七一五研究所 | Vector sensor-based orthogonal frequency division multiplexing (OFDM) underwater sound communication method |
| CN102170715A (en) * | 2011-03-30 | 2011-08-31 | 东方通信股份有限公司 | Mobile communication base station transceiver employing software radio technology and signal processing method |
| CA2812797A1 (en) * | 2012-04-11 | 2013-10-11 | Averna Technologies Inc. | Improved global navigation satellites system (gnss) recording system |
| CN104954059A (en) * | 2014-03-31 | 2015-09-30 | 深圳市中兴微电子技术有限公司 | Method for receiving multiple channel signals and device thereof |
| CN104407532A (en) * | 2014-09-30 | 2015-03-11 | 清华大学 | Digital demodulator based on industrial control computer platform |
| CN106209722A (en) * | 2016-06-15 | 2016-12-07 | 电子科技大学 | A kind of multi-path digital down conversion method for baseband signal receiver |
Non-Patent Citations (2)
| Title |
|---|
| 基于DSP的动态信号分析仪的研究与开发;邵姗姗;《中国优秀硕士论文全文数据库》;20071215;全文 * |
| 基于FPGA和DSP的高精度多通道信号检测系统硬件设计;李安阳;《机电工程》;20161020;第22卷(第10期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106817200A (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11375450B2 (en) | Transmission power control method of base station in OFDMA-based wireless communication system | |
| JP5032661B2 (en) | Method and system for adaptive transmission of control information in a wireless communication system | |
| US20180376370A1 (en) | Wakeup packet preamble | |
| CN108605291A (en) | A kind of method and apparatus sending and receiving WUR frames | |
| WO2020125455A1 (en) | Signal processing method and apparatus | |
| CN106817200B (en) | Dynamic signal detection method based on multi-channel communication receiving system | |
| CN104467938B (en) | Selection diversity receives the method and system of merging patterns | |
| US11190295B2 (en) | Remedial action based on inter-packet receive power | |
| CN103281143A (en) | Selecting type cooperation spectrum sensing method based on double-threshold energy detection | |
| US9584172B2 (en) | Wireless network receiver | |
| CN108141278B (en) | A kind of data sending, receiving method, apparatus and system | |
| CN106899386B (en) | Method for demodulating fragmented frame signals based on multi-channel communication receiving system | |
| CN114696930A (en) | Anti-interference method and device for DSS, electronic equipment and storage medium | |
| WO2024017114A1 (en) | Backscatter communication method, device, and readable storage medium | |
| CN111903161B (en) | Method for placing a node in wireless communication in standby mode and corresponding node | |
| WO2023035518A1 (en) | Wireless communication control information transmission method and device | |
| AU2017305029B2 (en) | User terminal and wireless communication method | |
| US8238280B2 (en) | Methods and systems for transmission scheduling during sleep mode in WIMAX networks | |
| Feng et al. | Exploiting wireless broadcast advantage for energy efficient packet overhearing in wifi | |
| CN109842423B (en) | Method and device for processing multi-antenna received signals | |
| WO2019096147A1 (en) | Method and apparatus for detecting control information | |
| WO2024208162A1 (en) | Method for symbol transmission and communication device | |
| US20220078729A1 (en) | Systems and methods for an optimum receiver beam selection | |
| CN108811113B (en) | Method for receiving downlink control channel and user equipment | |
| CN103166675B (en) | Power line signal based on spread spectrum detects and acquisition methods and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200327 Address after: No. 368, Keyun Road, hi tech Zone, Chengdu, Sichuan 610000 Applicant after: Chengdu Mifeng perception Technology Co., Ltd Address before: 430223 Hubei city of Wuhan province East Lake high tech Development Zone Wuhan University Science Park Road No. 2 Applicant before: WUHAN MIFENG COMMUNICATION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |