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本文从时变相参积累器之传輸函数出发,討論了开关式和連續式时变相参积累器对具有多普勒頻移的中頻寬脉冲信号和平稳随机噪声的积累,并得到了时变相参积累器的信噪比增益的普遍表达式。結果表明,用开关式和連續式时变相参积累器能分別达到对中頻寬脉冲信号的理想积累和近似理想积累。 本文还給出了說明理論的实驗結果。
Based on the transfer function of the time-varying phase-accumulator, the paper discusses the accumulation of the medium-frequency pulse signal and the stationary random noise with switched-mode and continuous time-varying phase-varying parameter accumulator with Doppler shift, Common expressions of signal - to - noise gain of reference accumulators. The results show that the ideal accumulation and approximate ideal accumulation of the intermediate-frequency pulse signal can be achieved by the switched-on and continuous-time-varying phase-by-phase integrators, respectively. This paper also gives the experimental results that illustrate the theory.