carrier signal to noise ratio

基本解釋

As demodulator threshold of receiver decreasing, performances of traditional SNR (signal to noise ratio) estimation and carrier lock detection deteriorate greatly.
當(dāng)接收機(jī)解調(diào)門限很低時，傳統(tǒng)方法的信噪比估值和載波鎖定判決性能都嚴(yán)重下降。
To the question of Carrier Synchronization with low signal-to-noise ratio (SNR) and High Dynamic , using the method of combining FLL with PLL to actualize the carrier tracking.
針對極低信噪比高動態(tài)條件下載波同步問題，采用鎖頻環(huán)（FLL）和鎖相環(huán)（PLL）相結(jié)合的方法來實現(xiàn)載波跟蹤。
Their main function is to simulate the satellite signal from the really satellite on the satellite orbit through changing code phase, Doppler shift, carrier and signal-to-noise ratio.
其主要功能就是通過改變碼相位、多普勒頻移、載波和信噪比來模擬衛(wèi)星軌道上真實衛(wèi)星發(fā)射的信號。