Pulse Compression for Binary Codes Using Spectrum Inverse Filters and their Properties(Reports of Overseas Activities)

Hiroshi Takase, Masanori Shinriki

Pulse Compression for Binary Codes Using Spectrum Inverse Filters and their Properties(Reports of Overseas Activities)

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説明

Mismatched processing of codes with multi-range resolution is revisited. The inverse of a binary code's spectrum is used as the transfer function of the mismatched filter. We calculate the mismatch losses for all combinations of binary codes in the range of code length L〓25 and find codes with very small mismatch loss compared with those of the conventional codes. The Doppler characteristics for various output pulse widths and relations between band-limitation of a receiver and SIF output waveforms are clarified by simulations.