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首页> 外文期刊>International Journal of Microwave and Wireless Technologies >Noise performance comparison between two different types of time-domain systems for microwave detection
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Noise performance comparison between two different types of time-domain systems for microwave detection

机译：两种不同时域系统在微波检测中的噪声性能比较

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摘要

This paper compares the noise performance of two different types of time-domain microwave detection systems: a pulsed system and a pseudo-random noise sequence system. System-level simulations and laboratory-based measurements are carried out in the study. Results show that the effect of timing jitter is more significant on the measurement accuracy of the pseudo-random noise sequence system than that of the pulsed system. Although the signal power density of the pseudo-random sequence system is tens of dBs higher than that of the pulsed system over the frequency band of interest, the signal-to-noise ratio difference between these two systems can be just a few dBs or even smaller depending on the jitter level.
机译：本文比较了两种不同类型的时域微波检测系统的噪声性能：脉冲系统和伪随机噪声序列系统。在研究中进行了系统级仿真和基于实验室的测量。结果表明，定时抖动对伪随机噪声序列系统的测量精度的影响比对脉冲系统的影响更大。尽管在感兴趣的频带上伪随机序列系统的信号功率密度比脉冲系统的信号功率密度高几十个dBs，但是这两个系统之间的信噪比差异可能仅为几dB甚至更高。取决于抖动水平。

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