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公开(公告)号:US5088110A
公开(公告)日:1992-02-11
申请号:US325085
申请日:1989-03-15
CPC分类号: H04L27/01
摘要: A baseband-controlled passband equalizing arrangement comprises a passband correction circuit for the data signals transmitted by modulating a carrier frequency, a first demodulation circuit which cooperates with a carrier recovery circuit for converting these carrier-modulated data signals into baseband signals, and a control circuit acting on the variable elements provided in the passband correction circuit in response to an estimated error of the baseband signals. The passband correction circuit produces a passband output signal v(t), which is a continuous function of the time t, in response to a passband input signal x(t), which is a continuous function of the time t, in accordance with the relation: ##EQU1## where r.sub.m, .psi..sub.m, .rho..sub.j, .phi..sub.j are variable elements, and .tau..sub.j, .tau..sub.m are fixed delays and M, N are constants.
摘要翻译: 基带控制的通带均衡装置包括用于通过调制载波频率发送的数据信号的通带校正电路,与用于将这些载波调制数据信号转换为基带信号的载波恢复电路协作的第一解调电路,以及控制电路 响应于基带信号的估计误差,作用于提供在通带校正电路中的可变元件。 通带校正电路响应于作为时间t的连续函数的通带输入信号x(t),根据该通带校正电路产生作为时间t的连续函数的通带输出信号v(t) 关系:
其中rm,psi m,rho j,phi j是可变元素,τj,τm是固定延迟,M,N是常数。