1 October 1995 Microwave acousto-optic time integrating receiver with signal parameter measuring capability
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Abstract
Acousto-optic time integrating receivers were first discussed some 18 years ago. This type of receiver can provide a very high sensitivity without too many attendant problems of stability and interference. The disadvantage with them is the loss of information about the received signal parameters due to the integration time used. Clearly any signal parameter with a time constant less than the receiver integration time will be averaged out by the detector and the information will be lost. An acousto-optic time integrating receiver has been developed that has a parallel path after the Bragg cell that allows the operator to direct any diffracted light at a selected frequency to a high-speed photodiode detector that measures the signal parameters. Output from the reciever is a high sensitivity real time display of signal activity against frequency and a table of the signal parameters of a particular signal chosen from the activity display measured at a slightly lower sensitivity.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Malcolm S. Brown, "Microwave acousto-optic time integrating receiver with signal parameter measuring capability", Proc. SPIE 2560, Optical Technology for Microwave Applications VII, (1 October 1995); doi: 10.1117/12.218529; https://doi.org/10.1117/12.218529
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KEYWORDS
Receivers

Sensors

Bragg cells

Signal processing

Signal detection

Acousto-optics

Photodiodes

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