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CDMA
- 从多普勒载波频偏对CDMA接收 信号的影响入手，提出了分段匹配滤波器和循环累加码捕获环路相结合的方法进 行扩频码的捕获，并对该方法的性能进行了分析和仿真。 -Doppler frequency offset from the carrier signal on the CDMA receiver to start the impact of proposed sub-cycle accumulation matched filter code acquisition loop and
carrier-frequency-capture
- 该文采用数字科斯塔斯环并结合数字匹配滤波辅助捕获的方法对T DRSS 中的大多普勒频移进行捕获和消除, 解决了大多普勒情况下载波恢复的难题, 为工程实践提供了一种新思路。-In this paper, using a digital Costas loop in combination with the digital matched filtering auxiliary capture the T-DRSS large Doppler frequency shift to capture a
PAPER5
- 基于电平交叉率的多普勒频移估计方法.PDF-Based on the level of cross-rate of Doppler shift estimation methods
delay
- 这个函数目的是为了实现信号的延迟传输，类似于多普勒频移的m文件-This function is used to achieve delayed transmission of signals
2015123541OFDMfreqSychr
- 多普勒功率谱在多普勒频域估计方法起到关键性作用。结合实际铁路场景,分析了各个场景信道特征和场景对应的多普勒功率谱。 -Doppler power spectrum in doppler frequency domain estimation methods play a key role.In this paper, the actual railway scenes, each channel characteristics and scene corresponding doppler