The application of digital signal processing techniques to a teleoperator radar system
Abstract
A digital signal processing system was studied for the determination of the spectral frequency distribution of echo signals from a teleoperator radar system. The system consisted of a sample and hold circuit, an analog to digital converter, a digital filter, and a Fast Fourier Transform. The system is interfaced to a 16 bit microprocessor. The microprocessor is programmed to control the complete digital signal processing. The digital filtering and Fast Fourier Transform functions are implemented by a S2815 digital filter/utility peripheral chip and a S2814A Fast Fourier Transform chip. The S2815 initially simulates a low-pass Butterworth filter with later expansion to complete filter circuit (bandpass and highpass) synthesizing.
- Publication:
-
In NASA. Marshall Space Flight Center The 1982 NASA/ASEE Summer Fac. Fellowship Program 20 p (SEE N83-17359 07-80
- Pub Date:
- August 1982
- Bibcode:
- 1982asee.nasaU....P
- Keywords:
-
- Continuous Wave Radar;
- Digital Systems;
- Digital Techniques;
- Signal Processing;
- Teleoperators;
- Analog To Digital Converters;
- Bandpass Filters;
- Digital Filters;
- Fast Fourier Transformations;
- Frequency Distribution;
- High Pass Filters;
- Low Pass Filters;
- Microprocessors;
- Radar Echoes;
- Communications and Radar