A method for receiving at a receiver having a variable filter a transmitted signal that includes
a periodic training signal. The method includes (a) receiving and sampling the transmitted …

An improved modem system for HF data transmission over a varying communication
channel transmits data in packets formatted into successive frames, each having two …

A receiver for a digital transmission system in which transmitted data contain a training data
sequence, and the receiver stores a copy of that sequence as it was transmitted. A channel …

In a method for establishing a data communication connec tion in a data channel utilizing
PAM signals, a transmitter transmits a training sequence, formed of predetermined symbols …

[57] ABSTRACT A receiver for use in the port or portable units in a TDM/TDMA digital radio
communications system is disclosed which incorporates an equalizer (107) to com pensate …

This invention relates to an equalizer for equalization of a linear modulated signal received
in blocks or frames over a radio channel. The impulse response of the chan nel is estimated …

In a transversal type equalizer having a series connected delay elements, multipliers are
coupled with each out put of each delay element and an adder adds outputs of the …

US5321722A - Multipoint connected communication system having function of retraining
modems provided therein and method of retraining the modems - Google Patents …

A receiver for time-varying distorted data signals, includes an equalizer and a channel
estimator which generates a channel information signal with the aid of a training signal sent …

A receiver (10) for extracting complex values by reference to a local frequency reference
determines the frequency offset between a local oscillator (16) and the carrier by employing …