Integrated Surface Acoustic Wave/Charge-Coupled Device (SAW/CCD) Signal Processing Devices

D. L. Smythe; R . W. Ralston

doi:10.1117/12.958304

29 February 1980 Integrated Surface Acoustic Wave/Charge-Coupled Device (SAW/CCD) Signal Processing Devices

D. L. Smythe, R . W. Ralston

Proceedings Volume 0209, Optical Signal Processing for C3I; (1980) https://doi.org/10.1117/12.958304
Event: Optical Signal Processing for C3l, 1979, Boston, United States

Abstract

This paper describes a new class of solid state devices for analog signal processing applications. These devices are achieved b integrating a surface acoustic wave (SAW) device with a suitable charge-coupled device (CCD) to make use of the advantages and compensate for the limitations of each. By combining the wide bandwidth of the SAW. with the long and flexible time handling capability of the CCD, it becomes possible to implement a family of unique devices capable of performing s as signal processing functions, including buffer memory, correlation, and matched filtering. We have fabricated and tested prototypes t perform. each. of these different functions. The fast-in, slow-out buffer memory has a 40-MHz bandwidth, an input signal duration of 3.5 os and an output clock rate of 100 kHz. The accumulating correlFltor has achieved a signal processing gain of 30 dB at a bandwidth of 20 MHz when or pseudohoise waveforms of 100 os duration. The CCD-programmable matched filter is capable of processing signals with a bandwidth of 40 MHz and a duration of 3.5 os. In each case the CCD signals a compatible with high-density, low-cost integrated circuits for handling the low-speed control and output aspects of the signal processing functions.

Citation Download Citation

D. L. Smythe and R . W. Ralston "Integrated Surface Acoustic Wave/Charge-Coupled Device (SAW/CCD) Signal Processing Devices", Proc. SPIE 0209, Optical Signal Processing for C3I, (29 February 1980); https://doi.org/10.1117/12.958304

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