Analysis of non - adjacent channel crosstalk level of awg device induced by random phase errors 波分复用器非相邻通道串扰影响的分析
Low adjacent channel power for receiver selectivity and amplifier linearity testing 低调较渠道力量为接收器选择性和放大器线性测试
So , at the frequency 1920mhz , phs will be adjacent to wcdma uplink , there will be fairly strong adjacent channel interference between them , compared to phs and wcdma downlink , which could be neglected Phs系统将紧邻wcdma系统的上行频带,在1920mhz频点附近两系统将会对彼此产生比较强的邻频干扰,由于频带距离较远,可以忽略wcdma下行频带和phs之间的干扰。
Since the envelope of modulated signal fluctuates , these methods generate unwanted intermodulation distortion ( imd ) products in a nonlinear radio frequency ( rf ) power amplifier ( pa ) . so it is necessary to use linearization technique to reduce the adjacent channel interference ( aci ) 但包络变化的调制信号经过非线性射频功放后会产生交调分量,因此必须采用线性化技术来减少由此产生的邻道干扰。
In communication systems like this , on account of nonlinearity which may arouse intermodulation of power amplifier may bringing the increaseing of ber because interferes from adjacent channel . hence , we did the analysis of relationship between im3 and ber in the system 但是在正是因为采取这种调制方式,由于功率放大器的( pa )非线性失真会引起交调效应产生同频及邻频信道的干扰而使误比特率( ber )增加。
In broadcasting an adjacent channel is an AM, FM, or TV channel that is next to another channel. First-adjacent is immediately next to another channel, second-adjacent is two channels away, and so forth.