Analog-Filter Digital-Correlator Hybrid Spectrometer
- 1 December 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. IM-34 (4) , 670-675
- https://doi.org/10.1109/tim.1985.4315432
Abstract
A system is described for measuring the power spectrum and cross spectral density of wide-band (≥ 50 MHz) noise-like signals which occur, for example, in radio astronomy. The system utilizes a comb-filter bank followed by digital correlator processing of each filter output. The cost equation, design factors, and a sample system are described. For measurement of the spectrum at a large number of frequencies, the system cost of the hybrid system is shown to be much lower than the cost of spectrometers which utilize either a filter-bank or digital correlator alone.Keywords
This publication has 1 reference indexed in Scilit:
- The very large array: Design and performance of a modern synthesis radio telescopeProceedings of the IEEE, 1983