CAJ | 학술논문

研究了直扩/跳频测控信号伪码跟踪的抗干扰性能,通过加权处理使其归结为分析干扰条件下直扩信号伪码跟踪性能.采用鉴相曲线的过零点偏移表示干扰对跟踪的影响,推导了伪码跟踪的最大干扰误差表达式.以单音信号作为输入干扰,对最大干扰误差进行了理论分析,得出了音频干扰对伪码跟踪的影响规律.仿真结果表明,理论分析与仿真结果吻合较好,验证了理论分析的正确性.
연구료직확/도빈측공신호위마근종적항간우성능,통과가권처리사기귀결위분석간우조건하직확신호위마근종성능.채용감상곡선적과영점편이표시간우대근종적영향,추도료위마근종적최대간우오차표체식.이단음신호작위수입간우,대최대간우오차진행료이론분석,득출료음빈간우대위마근종적영향규률.방진결과표명,이론분석여방진결과문합교호,험증료이론분석적정학성.
@@@@Direct Sequence/Frequency Hopping Telemetry, Tracking&Command (DS/FH TT&C) signals code tracking antijamming performance is studied, which is translated into the DS signals code tracking performance under jamming by weighted average method . Using the zero value point shift of the phase discriminator curves to evaluate the jamming impact on the code tracking performance, jamming maximum error ( JME) expression of code tracking is derived . The JME under tone jamming is deduced, and the rule of impact of tone jamming on code tracking is acquired . Simulation results show that theoretical analysis is in good agreement with simulation results, which validates the JME expression .