A receiver (e.g., for a 10G fiber communications link) includes an interleaved ADC coupled to a multi-channel equalizer that can provide different equalization for different ADC channels within the interleaved ADC. That is, the multi-channel equalizer can compensate for channel-dependent impairments. In one approach, the multi-channel equalizer is a feedforward equalizer (FFE) coupled to a Viterbi decoder, for example a sliding block Viterbi decoder (SBVD); and the FFE and/or the channel estimator for the Viterbi decoder are adapted using the LMS algorithm.

Systems and techniques relating to channel degradation detection for communication systems are described. A described system includes an interface to transmit signals and receive signals via a channel that includes a cable; an echo canceller coupled with the interface, the echo canceller to perform echo cancellation based on echo tap values to remove portions of the transmitted signals that appear as echoes within the received signals; an equalizer coupled with the interface, the equalizer to perform signal equalization based on equalizer tap values, the equalizer tap values being determined based on at least a portion of the received signals to adjust an impulse response of the channel and reduce inter-symbol interference within the received signals; and circuitry configured to determine a return loss channel quality indicator of the channel based on the echo tap values, determine an insertion loss channel quality indicator of the channel based on the equalizer tap values, or both.

A system and method for joint acoustic echo control and adaptive array processing, comprising the decomposition of a captured sound field into N sub-sound fields, applying linear echo cancellation to each sub-sound field, selecting L sub-sound fields from the N sub-sound fields, performing L channel adaptive array processing utilizing the L selected sub-sound fields, and applying non-linear audio echo cancellation.

The invention provides an impedance conversion device for a vehicle-mounted gigabit Ethernet chip adaptive to a coaxial cable transmission, and relates to the technical field of Ethernet communication. The impedance conversion device has a first impedance loop, a cable wiring end of the first impedance loop is connected with the coaxial cable, and a chip wiring end of the first impedance loop is connected with a first signal output end of the vehicle-mounted Ethernet chip; a first chip resistor is connected between a first signal input end and the first signal output end of the vehicle-mounted Ethernet chip, and the sum of an impedance value of the first impedance loop and a resistance value of the first chip resistor is equal to an equivalent resistance value of the coaxial cable.

The invention provides an impedance conversion device for a vehicle-mounted gigabit Ethernet chip adaptive to a coaxial cable transmission, and relates to the technical field of Ethernet communication. The impedance conversion device has a first impedance loop, a cable wiring end of the first impedance loop is connected with the coaxial cable, and a chip wiring end of the first impedance loop is connected with a first signal output end of the vehicle-mounted Ethernet chip; a first chip resistor is connected between a first signal input end and the first signal output end of the vehicle-mounted Ethernet chip, and the sum of an impedance value of the first impedance loop and a resistance value of the first chip resistor is equal to an equivalent resistance value of the coaxial cable.