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本文提出一种根据频率域扩展原理工作的新颖扩展频谱波形。这种波形跟一般的扩展频谱波形相比。主要优点是非常适用于低费用的变换域相关处理,因为它们的傅里叶频谱可以由简单的伪噪声二进制序列构成。在实用的扩展频带通信系统中,因时间和幅度限制造成的信噪比(SNR)损失,可以通过严格地选择系统的参数,将共限制在1.2分贝左右。本文主要意图是在频率域获得扩展频谱波形的新技术发展方面起促进作用,而不是提供完整的设计方法。
In this paper, we propose a novel spread spectrum waveform that operates according to the principle of frequency domain expansion. This waveform compared with the general spread spectrum waveform. The main advantage is that it is well suited for low-cost transform-domain correlation because their Fourier spectrum can be composed of simple pseudo-noise binary sequences. In a practical extended-band communication system, the signal-to-noise ratio (SNR) loss due to time and amplitude limitations can be limited to about 1.2 decibels by strictly selecting the parameters of the system. The main purpose of this paper is to facilitate the development of new technologies for obtaining spread spectrum waveforms in the frequency domain, rather than providing a complete design methodology.