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通过针对二相相移键控(BPSK,Binary Phase Shift Keying)最佳干扰样式的研究,从理论上分析了载波环路的特点。根据载波环路的收敛特性提出了窄带噪声调相干扰样式,该调制样式能够破坏载波环路锁相环的收敛特性,使解调的误码率增高。通过加载几种不同干扰信号的实验,证明了针对载波环路的干扰要比常规的干扰方式更高效。得出了使用窄带噪声调相信号作为干扰源是BPSK调制信号的最佳干扰样式,可以进一步地节省干扰功率,提高干扰效率。
By studying the best interference pattern of Binary Phase Shift Keying (BPSK), the characteristics of the carrier loop are theoretically analyzed. According to the convergence characteristics of carrier loop, a narrowband noise phase modulation interference scheme is proposed. This modulation scheme can destroy the convergence characteristics of the carrier loop PLL and increase the bit error rate of demodulation. Experiments by loading several different interfering signals prove that the interference to the carrier loop is more efficient than the conventional one. It is concluded that the best interference pattern of BPSK modulation signal using the narrowband noise phase modulation signal as the interference source can further save the interference power and improve the interference efficiency.