CAJ | 학술논문

由于梳状谱信号多普勒容限较小，利用常规的匹配/相关检测方法进行检测时，需要较大数量的拷贝信号与计算量。针对这一问题，本文提出一种基于频域搜索的梳状谱信号检测算法。通过利用梳状谱信号频域多峰结构的特点，根据信号的先验信息计算出不同径向速度下回波信号的频点分布，对接收的信号在频域进行搜索累计的方法同时实现信号的检测与速度估计。仿真分析证明了本文算法的有效性。
유우소상보신호다보륵용한교소，이용상규적필배/상관검측방법진행검측시，수요교대수량적고패신호여계산량。침대저일문제，본문제출일충기우빈역수색적소상보신호검측산법。통과이용소상보신호빈역다봉결구적특점，근거신호적선험신식계산출불동경향속도하회파신호적빈점분포，대접수적신호재빈역진행수색루계적방법동시실현신호적검측여속도고계。방진분석증명료본문산법적유효성。
The Doppler tolerance of comb spectrum signal is small, when using the conventional matching/correlation method to detect signal, large number of copy signal and calculation amount is needed, focused on this problem, this paper proposed a frequency searching method for comb-spectrum signals detection. By using the comb-spectrum signal′s multi-peaks structure in frequency domain, calculated the frequency distribution of different radial velocity according to the prior information, search and cumulate according the frequency distribution in frequency domain, get the echo detection and velocity estimation result, simulation analysis proves the validity of this algorithm.