Experiments on a Coherent Matched Filter Receiver for Spread Spectrum Mobile Satellite Communications

Tetsushi IKEGAMI  Ryutaro SUZUKI  Naokazu HAMAMOTO  Nobuyasu SATO  

IEICE TRANSACTIONS on Communications   Vol.E74-B   No.5   pp.1130-1136
Publication Date: 1991/05/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Spread Spectrum Techniques and Its Applications)

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The performance of a digital matched filter receiver with multi-bit quantized correlators for Direct Sequence Spread Spectrum (DSSS) mobile satellite applications is evaluated with experiments. A Coherent Matched Filter (CMF) technique is used to accomplish fast code acquisition, automatic frequency control and coherent detection of data with a single matched filter circuit to satisfy the requirements for the mobile satellite applications. Loop-back test and field test results in suburban areas with the ETS-V satellite are presented, in which the use of multi-bit quantized correlators improve the initial acquisition and the bit error rate performances. The dynamic performance of the CMF receiver is confirmed to be satisfactory for the mobile satellite fading channels.