Automatic volume control for aircraft radio receivers

Automatic Gain Control (AGC) in Receivers

AGC was implemented in first radios for the reason of fading propagation (defined as slow variations in the amplitude of the received signals) which required continuing adjustments in the receiver‟s gain in order to maintain a relative constant output signal. Such situation led to the design of circuits, which primary ideal function was to maintain a constant signal level at the output, regardl...

Automatic Volume Control for Auditory Interfaces

Air-consumption Parameters for Automatic Mixture Control of Aircraft Engines

Data obtained from Nary calibration tests of an 18-cylinder, two-row, radial engine of 8350-cubic-inch displacement and a 14-cylinder, two-row, radial engine of 2600-cubic-inch displacement {carburetor types) were analyzed to show the correlation between the air consumption of these engines and the parameters that evaluate the air consumption from intake-manifold temperature and pressure, exhau...

Efficient filterbank channelizers for software radio receivers

For cellular software radio receivers, this paper presents a computationally efficient algorithm for extracting individual radio channels from the output of the wideband A/D converter. In a software radio, the extraction of individual channels from the output of the wideband A/D converter is by far the most computationally demanding task; hence, it is very important to devise computationally ef...

Radio data system for automatic tuning and other applications in FM radio receivers for use with pilot-tone system