Accession Number : AD0818877

Title :   REAL TIME BEAM STEERING.

Descriptive Note : Final rept. 1 Apr 66-1 Apr 67

Corporate Author : BENDIX CORP BALTIMORE MD COMMUNICATIONS DIV

Personal Author(s) : Beachler, L. W. ; Ehrlinger, R. J.

Report Date : JUL 1967

Pagination or Media Count : 111

Abstract : The basic phased array radar without real-time delay steering has a performance degradation due to the signal propagation time across the array. To eliminate the propagation time effects, a method of stepped IF real-time delays was studied. The performance of a 90 element linear array was both predicted and measured with and without the real-time delay compensation for pulse durations short, with respect to the array propagation time. System signal degradation is shown to be reduced from greater than 100 percent without real-time steering to less than 5 percent, with real-time steering. A theory of array short pulse performance is also developed with recommendations for further study in this area. (Author)

Descriptors :   (*BEAMS(ELECTROMAGNETIC), REAL TIME), (*STEERING, BEAMS(ELECTROMAGNETIC)), (*CONTINUOUS WAVE RADAR, PHASED ARRAYS), PROPAGATION, ATTENUATORS, PERFORMANCE(ENGINEERING), PULSE AMPLITUDE MODULATION, PULSE FREQUENCY MODULATION, WAVE FUNCTIONS, DELAY LINES, ANTENNA LOBES, POWER SERIES, RADAR SIGNALS, DEGRADATION, ERRORS.

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE