首页>
外国专利>
Mobile channel estimation for DVB-T COFDM demodulator
Mobile channel estimation for DVB-T COFDM demodulator
展开▼
机译:DVB-T COFDM解调器的移动信道估计
展开▼
页面导航
摘要
著录项
相似文献
摘要
A channel estimator for use in a DVB-T system is capable of high Doppler performance without incurring restrictive delay spread limitations, in a hardware efficient manner. A first channel impulse response is generated that has ambiguity due to under-sampling in the frequency domain. A filter is then used to filter scattered pilots to generate a mask that is capable of resolving the ambiguities. In at least one approach, a finite impulse response filter is used during the mask generation process to generate a snapshot of the channel frequency response in non-real time. In another approach, an infinite impulse response filter is used during the mask generation process to generate a channel frequency response in real time.
展开▼