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Detection improvement by modified modulation error rate of reference signal in passive radar

机译:通过无源雷达中的参考信号修改调制误差率的检测改进

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Reference signal plays an important role in passive radar signal processing. Passive radar exploits the third-party radio sources as illuminators of opportunity to detect targets of interest. It is well known that bit error rate (BER) is used to represent the quality of communication. However, BER is unknown in passive radar. This paper exploits modulation error rate (MER) extracted from symbol constellation diagram to quantify the quality of reference signal, which is practically feasible in passive radar. Then simulation results with respect to the influence of reference signal on clutter suppression and matched filter are both given. Moreover, modified-MER (MMER) of reference signal is presented to improve detection performance. The effectiveness is verified by simulation results in digital terrestrial multimedia broadcasting (DTMB) based passive radar.
机译:参考信号在被动雷达信号处理中起着重要作用。 被动雷达将第三方无线电源利用作为检测感兴趣目标的机会的照明器。 众所周知,误码率(BER)用于表示通信质量。 然而,BER在被动雷达中是未知的。 本文利用从符号星座图中提取的调制误差率(MER)来量化参考信号的质量,这在无源雷达中实际上是可行的。 然后给出相对于参考信号对杂波抑制和匹配过滤器的影响的模拟结果。 此外,提出了改进的参考信号的MER(MMER)以改善检测性能。 基于数字地面多媒体广播(DTMB)的无源雷达的仿真结果验证了有效性。

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