常見例句When transmitting signal is below 500 Kbps, increasing the system power can reduce the bit error rate (BER) for the signal suffering only flat fading. 當(dāng)碼速率較低時(500Kbps以下),信號受到平坦衰落,增大系統(tǒng)功率可以降低系統(tǒng)誤碼率。The algorithms in flat fading MIMO systems can be directly used in wideband correlated MIMO case based on virtual antennas idea. 通過引入虛擬天線思想,窄帶MIMO的空時信號處理算法可直接推廣到寬帶MIMO系統(tǒng)中。In this paper, an autoregressive (AR) model is presented for the simulation of flat fading channel in complex communication environments. 本文實現(xiàn)了復(fù)雜傳播環(huán)境下平坦衰落信道的AR模型仿真。It reduces the effect of frequency-selective fading by dividing the transmission bandwidth into many narrowband subcarriers, each of which exhibits approximately flat fading. 透過將可用頻寬分割成許多窄頻且遭受近似平坦衰落的子載波,它可減低頻率選擇性衰落的效應(yīng)。While this dissertation will use wavelet analysis to decompose fading-process, and provide wavelet model of flat fading channel, then propose a new blind receiver based on Monte carol algorithm. 本文將平衰落信道的衰落過程進行小波分解與建模,在此基礎(chǔ)上提出一種采用順序蒙特卡羅算法的盲均衡接收機,并給出了仿真結(jié)果以證明此接收機的優(yōu)異性能。Then this paper makes some overview and simulation on the application of three precoding algorithms under the flat fading channel, which are linear preequalization, Tomlinson-Harashima precoding (THP ) and Lattice reduction-aided (LLL) vector precoding. 本文對三種常見的預(yù)編碼算法在平坦衰落信道下的應(yīng)用進行了綜述和仿真研究,包括迫零線性預(yù)均衡、THP預(yù)編碼和格約簡輔助矢量預(yù)編碼等算法。 返回 flat-fading