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首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >The Effect of Hard Limiting an Angle-Modulated Signal Plus Noise
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The Effect of Hard Limiting an Angle-Modulated Signal Plus Noise

机译：硬限制角度调制信号加噪声的影响

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摘要

The effect of hard limiting an angle-modulated signal plus narrow-band Gaussian noise is analyzed. Several examples are considered¿sinusoidal angle modulation, Gaussian angle modulation, and biphase angle modulation. The general conclusion is that when a zonal band-pass filter is used, which rejects dc and second harmonics, an angle-modulated signal plus Gaussian noise provides the same output signal-to-noise ratio as shown by Davenport for a CW signal plus Gaussian noise. However, when a narrow bandpass filter is used, which has a bandwidth approximately equal to the input angle-modulated signal, an angle-modulated signal plus Gaussian noise has a better output signal-to-noise ratio than a CW signal plus Gaussian noise.
机译：分析了硬限制角度调制信号加窄带高斯噪声的影响。几个示例被认为是正弦角调制，高斯角调制和双相角调制。总的结论是，当使用带状带通滤波器来抑制直流和二次谐波时，角度调制信号加高斯噪声可提供与Davenport所示的CW信号加高斯相同的输出信噪比。噪声。但是，当使用带宽大约等于输入角度调制信号的窄带通滤波器时，角度调制信号加高斯噪声比CW信号加高斯噪声具有更好的输出信噪比。

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