基于fft的多普勒频偏估计算法研究

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1、4.2.1真实信号的FFT··············································································35 4.2.2高斯白噪声的FFT··········································································35 4.2.3信噪比增益分析········································································

2、······36 4.2.4检测概率分析··················································································37 4.3FFT频偏估计算法设计与仿真······························································37 4.3.1算法原理·········································································

3、·················37 4.3.2滤波器的设计··················································································39 4.3.3算法仿真··························································································41 4.4一种低信噪比大多普勒频偏下的载波同步环路····························

4、······44 4.4.1载波跟踪环路设计··········································································44 4.4.2载波同步环路仿真··········································································45 4.5本章小结·········································································

5、························47 第5章基于DSP6000的FFT实现·································································48 5.1引言·········································································································48 5.2FFT谱计算··································

6、····························································48 5.2.1FFT算法的一般规律·······································································48 5.2.2常用FFT算法·················································································49 5.3FFT的定点DSP实现·······

7、······································································50 5.3.1运算溢出及避免方法······································································50 5.3.2FFT的C语言代码实现···································································51 5.4FFT在TMS320C6416上的实现·

8、···························································53 5.4.1TMS320C6416的主要特点··································