Error probabilities of an FFT-based FFH/BFSK linear-combining receiver with partial-band noise jamming and AWGN

K. C. Teh, A. Kot, K.H. Li
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引用次数: 3

Abstract

This paper presents the performance analysis of a fast frequency-hopped binary frequency-shift-keying (FFH/BFSK) linear-combining receiver in conjunction with a fast Fourier transform (FFT) processor. Under the conditions of partial-band noise jamming (PBNJ) and additive white Gaussian noise (AWGN), the bit-error rate (BER) expressions of the proposed FFT-based linear-combining receiver are derived in terms of the characteristic functions of the decision statistics. The BER expressions, validated by simulation results, are applicable to any arbitrary diversity level. The proposed FFT-based receiver provides an alternative to the conventional matched-filter receiver. The FFT-based receiver is shown to give comparable performance with the corresponding matched-filter receiver. The worst-case PBNJ fraction is shown to be inversely proportional to the signal-to-jamming ratio and the performance of the FFT-based linear-combining receiver is degraded as the diversity level is increased.
基于fft的FFH/BFSK线性组合接收机在部分频带噪声干扰和AWGN下的误差概率
本文对快速跳频二进制移频键控(FFH/BFSK)线性组合接收机与快速傅里叶变换(FFT)处理器的性能进行了分析。在部分频带噪声干扰(PBNJ)和加性高斯白噪声(AWGN)条件下,利用决策统计量的特征函数推导了基于fft的线性组合接收机的误码率(BER)表达式。仿真结果验证了误码率表达式适用于任意分集水平。提出的基于fft的接收机为传统的匹配滤波器接收机提供了一种替代方案。基于fft的接收机与相应的匹配滤波器接收机具有相当的性能。最坏情况下的PBNJ分数与信干扰比成反比,并且随着分集电平的增加,基于fft的线性组合接收机的性能下降。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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