大家都搜：
调频噪声
1、frequency modulation───调频
2、modulated───adj.已调的；被调的；v.调整，调节；吟咏；改变（嗓音的）音量（modulate的过去分词）
3、frequency───n.频率；频繁
4、noise───n.(Noise)人名；(英)诺伊斯；vt.谣传；vi.发出声音；大声议论；n.[环境]噪音；响声；杂音
5、frequency polygon───[统计]频数多边形
6、frequency generator───[计]频率发生器
7、frequency equation───频率方程
8、frequency range───频带; 频段；[电子][通信]频率范围
9、cumulative frequency───[统计]累积频率，[电子]累积频数
1、The problem of estimating the parameter of a linear frequency modulated signal embedded in additive noise is considered.───研究了加性噪声ZhongXian性调频信号的参数估计问题。
2、this spectroscopy, both laser frequency and Zeeman effect of a sample are modulated, and then the signal with high signal to noise will be obtained by double demodulation.───它同时对激光频率和样品的塞曼效应进行调制，然后通过双解调来提取微弱的光谱信号。