摘要
面向空间交会对接任务中高精度测量需求,针对现有伪码连续波主动应答式双向测量系统中采样时钟偏差引入测量波动问题,提出了一种基于多级滤波的测量波动优化方法.仿真结果证明,经过多级滤波后,测量波动的峰值降低了两个数量级,得到了有效抑制.暗室的实测数据结果进一步验证了优化方法的有效性.
As a key technology for space target detection and localization,microwave measurement technology based on the direct sequence spread spectrum plays a pivotal role in the field of space-based detection.For high-precision measurement requirements in space rendezvous and docking missions,an effective optimization method based on multi-stage filtering was proposed to suppress the measurement fluctuation introduced by the sampling clock jitter in existing active response two-way measurement systems with pseudocode continuous wave transmission.The simulation results show that after multi-stage filtering,the peak of the measurement fluctuation can be reduced by two orders of magnitude and effectively suppressed.The results of measured data collected in a microwave dark room further verify the effectiveness of the optimization method.The implementation of proposed method costs low and can get evident optimization effect,making it suitable for optimizing and upgrading existing active response two-way measurement systems with pseudocode continuous wave transmission.
作者
郭东文
吴爽
崔嵬
GUO Dongwen;WU Shuang;CUI Wei(School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China)
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2023年第6期633-639,共7页
Transactions of Beijing Institute of Technology
基金
国家自然青年科学基金资助项目(62201053)。
关键词
伪码连续波
时钟偏差
主动应答式双向测量
测量波动
pseudocode continuous waves
clock jitter
active response two-way measurement
measurement fluctuation
