A scheme of satellite covert communication based on the coherent chaos shift keyingsignal is proposed in this paper, then the whole system model is also constructed.
The solution for linking twice sampling cycles, enhancing resolution of measurement of rotating speed, isolating and processing keying phase signal, are investigated.
探讨了两次采样循环之间的衔接、提高转速测量分辨率、键相位信号的隔离和预处理等问题的解决方案。
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Concerning the problem of demodulating the weak Binary Phase Shift Keying (BPSK) signal, the demodulation method based on chaotic system was researched.