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Channel impulse response estimator for use in an adaptive maximum likelihood sequence estimation receiver which is applicable to a communication system having a channel characteristic with rapid fluctuation
Channel impulse response estimator for use in an adaptive maximum likelihood sequence estimation receiver which is applicable to a communication system having a channel characteristic with rapid fluctuation
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机译:用于自适应最大似然序列估计接收机的信道冲激响应估计器,适用于具有信道特性快速波动的通信系统
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摘要
In a channel impulse response estimator (12), a local preamble generator (35) generates a local preamble signal identical with a transmission preamble signal in a received signal. A preamble detector (37) detects the transmission preamble signal in an estimated sequence signal to produce a preamble detection signal. Responsive to the preamble detection signal, a sequence selector (39) selects one of the local preamble signal and the estimated sequence signal as a selected sequence signal which is supplied to a re-modulator (14). Responsive to the preamble deection signal, a step-size generator (41) generates one of first and second step-size signals as a selected step-size signal which is supplied to a tap coefficient producer (26). IMAGE
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