Real-time precise orbit and clock products are necessary for Global Navigation Satellite System (GNSS) precise positioning to achieve a centimeter-level accuracy. Besides the accuracy of orbit and clock products, the demands for their reliability ...

In order to meet the time-critical and high-precision positioning demands of massive market applications, real-time Precise Point Positioning (PPP) technology has been continuously developed and can achieve a high level of accuracy now. Beyond ...

Read-disturb problem plays a pivotal factor in the performance of NAND flash memory, because it deteriorates the read-disturb errors of NAND flash. Although ECC, read retry, and read reclaim technologies are designed to correct read-disturb errors, these ...

The deep forest model, a random forest (RF) ensemble approach and an alternative to Deep Neural Network (DNN), has performance highly competitive to DNN in many classification tasks. However, deep forest model may encounter overfitting and ...

Precise knowledge about the attitude of Global Navigation Satellite System (GNSS) satellites is essential for precise orbit determination (POD) and other high-precision GNSS applications. The first Quasi-Zenith Satellite System (QZSS) satellite ...$$$$

Japanese Quasi-Zenith Satellite System (QZSS) consists of three inclined geosynchronous orbit (IGSO) satellites as well as a geostationary satellite. According to the QZSS metadata, the three IGSO satellites are equipped with large L-band antennas,...