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再生伪码测距体制通过对上行伪码测距信号进行恢复,并重新调制到下行载波发送,可以获得可观的测距信号信噪比增益。对这部分增益的合理使用,可以获得较高的测距精度,也可以获得较短的测距时间,还可以提高遥测信号的功率。本文从测距码、捕获时间以及测距信号与遥控/遥测信号之间的相互干扰3方面介绍了再生伪码测距体制。
Regenerative pseudo-ranging system by measuring the uplink pseudo-ranging signal recovery, and re-modulated to the downlink carrier to send, you can get a significant signal-to-noise ratio ranging signal gain. Reasonable use of this part of the gain, you can get a higher accuracy of ranging can also get shorter ranging time, but also can improve the telemetry signal power. In this paper, ranging pseudo-code ranging system is introduced in the aspects of ranging code, acquisition time and mutual interference between ranging signal and remote control / telemetry signal.