Adaptive equalizer for digital cellular radio

Details Adaptive equalizer for digital cellular radio Adaptive equalizer for digital cellular radio

1991-03-21

1993-07-27

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 14, 455 331, H03H 730

Patent

active

052316483

ABSTRACT:
The present invention provides a method of estimating parameters of a mobile radio channel which are used for providing the equalization and synchronization of the radio channel. The channel is modelled as a discrete number of independent Rayleigh-faded propagation paths. First, the relative delay of each path is estimated, using maximum likelihood methods. Using this information, the associated time-varying path weights are then determined using a least-squares fit. This is sufficient information to estimate the impulse response of the channel. The actual equalizer weights are then obtained by inverting the estimated channel impulse response.

REFERENCES:
patent: 3659229 (1972-04-01), Milton

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