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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Lei Huang, Xinming Li, Jingyuan Tang, Xiaomei Wang, Feixue |
| Abstract | BPSK is the basis of current GNSS (Global Navigation Satellite System) signals. BDS (Beidou navigation satellite system) RDSS (Radio Determination Satellite Service) system also adopts BPSK to realize communication and ranging simultaneously. To realize higher system capacity, RDSS signals overlap in time and frequency domain. The signal performance is heavily determined by the MAI (Multiple Access Interference) between overlapping signals. In this paper, SSMSK (spread spectrum MSK) is proposed. The signal performance is investigated under four conditions considering the main lobe bandwidth and the receiver bandwidth. The maximum number of overlapping signals for SSMSK is 11.7% higher than BPSK when the receiver bandwidth is for the side subcarrier. And the value is 10.6% when the receiver bandwidth is. SSMSK can be received utilizing BPSK local signal. When the receiving bandwidth is 2 R c , the correlation peak of SSMSK_BPSK is identical to BPSK. The tracking accuracy of SSMSK is higher than BPSK when the correlation interval is between 0.2-1 chips. The accuracy of SSMSK_BPSK is higher than BPSK when the correlation interval is 0.5 chips. The disadvantage of SSMSK is larger quantization word length. SSMSK is a better modulation for RDSS based on the comprehensive performance. |
| Starting Page | 870 |
| Ending Page | 878 |
| Page Count | 9 |
| ISSN | 17518784 |
| Volume Number | 14 |
| e-ISSN | 17518792 |
| Issue Number | Issue 6, Jun (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rsn/14/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2019.0533 |
| Journal | IET Radar, Sonar & Navigation |
| Publisher Date | 2020-02-03 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Acquisition Performance BDS RDSS Signal Modulation BDS RDSS System BeiDou Navigation Satellite System Binary Phase-shift Keying BPSK Local Signal Electromagnetic Compatibility Frequency Domain Frequency Domain Analysis Global Navigation Satellite System GNSS Signal Interference Main Lobe Bandwidth Mathematical Analysis Minimum Shift Keying Modulation And Coding Method Multi-access System Multiple Access Communication Multiple Access Interference Overlapping Signal Phase Shift Keying Radio Determination Satellite Service Radio Frequency Interference Radio Navigation And Direction Finding Radio Receiver Receiver Bandwidth Satellite Communication System Satellite Navigation Side Subcarrier Signal Performance Spread Spectrum Communication Spread Spectrum Minimum Shift Keying SSMSK_BPSK Time Domain Time Domain Analysis Tracking Performance |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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