two-frequency signal receiver 中文意思是什麼
two-frequency signal receiver
解釋
雙頻制信號接收機-
( 2 ) an analog - digital channelized receiver is given. two key techniques of this receiver, including how to achieve data conversion effectively and frequency estimation precisely, are introduced briefly. the change of channelized lfm signal is discussed
給出了一種目前可實現的模數混合通道化接收機方案，簡要介紹這種接收機的關鍵技術? ?高效的數據率轉換以及超寬帶線性調頻信號測頻演算法。 -
The frequency offset estimation algorithms for gmsk signal are also discussed and a frequency offset estimator with larger estimation range and higher accuracy is proposed. two kinds of synchronization structures are compared with each other. at last, the synchronizer described above and a differentially coherent demodulator compose a blind gmsk receiver
其次，基於對目前gmsk信號盲載頻偏差估計方法的分析和比較，根據第五章提出的頻差估計思想，提出一種寬估計范圍、高精度的gmsk信號頻差估計方法。 -
Two - frequency signal receiver
雙頻制信號接收機 -
( 1 ). here we build the system space geometry model : the transmitter and receiver fly on different platforms and at different height, two flight paths are unparallel. based on the chirp signal and the taylor series, we analyze the range history and synthetic aperture time, then demonstrate the equation of the azimuth resolution about air - born bistatic spotlight synthetic aperture radar, meanwhile we obtain the equations of doppler bandwidth and doppler frequency modulate rate
本文以機載聚束式合成孔徑雷達成像作為研究背景，主要完成了以下幾方面的工作: （ 1 ）建立了一種機載雙站聚束式sar空間幾何數學模型，對方位分辨力進行了理論分析，進行了數值分析與模擬，討論了不同條件對雙站聚束模式sar系統分辨力的影響。 -
In the subsystem of the receiver, to get i q two - channel digital signal, return signal was perpendicular sampled at intermediate frequency
在接收機子系統中，採用了中頻直接正交采樣來完成對信號的i 、 q雙通道的分離。
分享友人