A low cost equalizer with applications in aeronautical telemetry systems

A simple approach for adaptive equalization with applications in aeronautical telemetry systems over multipath fading channels is introduced. This simple equalizer reduces multipath interference based on the principle of slope compensation. Unlike conventional slope based equalizers, the frequency response of the simple equalizer mirrors the frequency response of the multipath fading channel for the carrier frequency by means of opposite slope compensation in order to reduce the fade notch depth. This equalizer has a feedforward structure with only two adjustable parameters and can be implemented at either an intermediate frequency or the baseband domain. The experimental hardware measurements and computer simulations clearly indicate that the system equipped with the proposed equalizer achieves significant performance improvement in a multipath fading channel.