Abstract
AbstractAn optimum presynchronization filter for the pulse‐position‐modulation (PPM) signal is derived and shown to be comprised of a matched filter in cascade with a derivative network. An original investigation of the performance of the filtered PPM system is presented. The matched filter is realized from a time‐domain specification on the received pulse shape and an RC combination derivative network is used to shape the pulse. The results demonstrate that there exists an optimum value of the differentiating capacitor resulting in performance that is close to the true derivative. The results obtained illustrate a significant improvement in both the timing variance and jitter wrong slot error (JWSE) probability compared to that for the matched filter. © 1995 John Wiley & Sons, Inc.
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