Pulse compression for binary codes using spectrum inverse filters and their properties

H. Takase, M. Shinriki
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引用次数: 1

Abstract

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. We also discuss how a desired signal waveform depends on mismatch loss.
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使用频谱反滤波器的二进制码脉冲压缩及其特性
重新讨论了多距离分辨率码的不匹配处理。用二进制码频谱的逆作为失匹配滤波器的传递函数。我们计算了码长L≤25范围内所有二进制码组合的错配损失,发现与传统码相比,这些码的错配损失非常小。通过仿真,阐明了不同输出脉冲宽度下的多普勒特性以及接收机的带限与SIF输出波形之间的关系。我们还讨论了期望的信号波形如何取决于失配损耗。
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