Title :
A method for determining filter spacing in assumed velocity filter banks
Author_Institution :
MIT Lincoln Lab., Lexington, MA
fDate :
7/1/1993 12:00:00 AM
Abstract :
An implementation of the Chen equation is presented along with an expanded set of results. A number of important system tradeoffs, such as the number of filters as a function of the acceptable loss factor, is demonstrated. In order to accomplish this, a method is presented for computing the maximum speed or angular mismatch between a target and velocity filter for a given acceptable loss in SNR. This allows one to determine the radial and angular spacing of filters in a filter bank for the specified loss factor, and consequently the necessary number of filters to cover a given velocity space. This might be useful, not only for design of static filter banks, but even more so in dynamic environments with changing filter needs
Keywords :
filtering and prediction theory; filters; signal processing; 3D matched filters; Chen equation; SNR; acceptable loss factor; angular mismatch; angular spacing; design; dynamic environments; filter spacing; loss factor; maximum speed; radial spacing; static filter banks; target; velocity filter banks; Equations; Filter bank; Filtering theory; Matched filters; Signal to noise ratio; Velocity measurement;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
