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We propose a class-associative correlation filter based technique for detecting a class of objects consisting of dissimilar patterns. The fringe-adjusted joint transform correlation algorithm is utilized to enhance the correlation performance, thus ensuring a strong and equal correlation peak for each element of the selected class. For enhanced performance, an enhanced version of the fringe-adjusted filter is incorporated in the class-associative multiple target detection process. The feasibility of the proposed technique has been tested by computer simulation.

A novel tunable bandpass filter for mobile Several electronically tunable filters [1]-[3] have been handset application is reported. Combline topology has been reported recently. But none of them are for Tri-Band used for this filter and it has been implemented in LTCC (DCS, pcs, and UMTS) mobile handset application. The multi-layer technology for small size. The tiller can be tuned tunable filters in tll are for 4oo mz and MHz over DCS, PCS, and UMTS hands used in mobile than 4.3 dB insertion loss over the entire tuning range and to the reason that these are diode varactor based lumped has a small foot print Simulated and measured responses of design, which might give higher loss at L-Band the tiller show goad correspondence. application. The filters in [2] are for low frequency application, whereas the filters in [3] are for L Band application. But the filter size is large in both cases. The filter to be reported in h i s paper is a tunable one implemented in L~~. T~~~ Co-fired ceramic (LTCC) technology in order to reduce he size, with LTCc techology, the filter is implemented in mulfilayers and resistors used in the biasing circuit are developed at paratek, Since the tunable dielectric without degrading the response. It has less application and may not be suitable for Tri-Band filter due