A low flicker noise mixer for zero-IF GPS receiver is presented.
设计了一种用于零中频gps接收机的低闪烁噪声混频器。
The noise mainly comes from the thermal noise of resistors and the flicker noise of MOSFETs.
接收机中的噪声主要是电路中电阻的热噪声和MOS器件的闪烁噪声。
Flicker noise is approximately simulated by power law model of phase noise spectral density.
根据相位噪声功率谱的幂律模型，近似地模拟了相位噪声。
Second , the noise of double balanced mixer was analyzed, which involved analysis of low frequency flicker noise and high frequency thermal noise.
接着对双平衡混频器的噪声进行理论分析，包括低频闪烁噪声和高频热噪声。
In detail, there is reported on the achievable improvement of picture sharpness and signal-to-noise ratio as well as on the reduction of flicker effects and luminance-chrominance-interference.
本文还详细报导了图象尖锐度和信噪比，以及抑制闪烁效应和亮度色度串扰等方面可获得的改善。
In detail, there is reported on the achievable improvement of picture sharpness and signal-to-noise ratio as well as on the reduction of flicker effects and luminance-chrominance-interference.
本文还详细报导了图象尖锐度和信噪比，以及抑制闪烁效应和亮度色度串扰等方面可获得的改善。
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