Titlebook: Aspects of Signal Processing With Emphasis on Underwater Acoustics, Part 2; Proceedings of the N G. Tacconi Conference proceedings 1977 Spr

高兴一回

Constrained systems: numerical methods these idealized models the optimized array response patterns are computed and will be shown for various doppler frequency cells, platform velocities and sea state conditions..Next the physical transducer is measured and the actual performance of adaptive beamforming, taking into account the transdu

Keratectomy

Variational and energy principles use of MTI clutter suppression filters at the subarray outputs, prior to adaptation, was investigated. No significant improvement was observed with the use of these filters on experimental data. Finally, it was shown that the presence of fading nulls can significantly affect the determination of op

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AMITY

健谈

The Effects of Signal and Weight Coefficient Quantisation in Adaptive Array Processorsng all-digital processing in which the input hydrophone data is digitised by A/D converters, which introduce random quantisation errors into the signal channels. The second quite separate problem arises when the weight coefficients in an adaptive array processor are quantised, such as would occur in

阴险

chisel

gangrene

Separation and Representation of Sources and Signals by a Linear Antenna the antenna receives monochromatic coherent signals, this function can be performed rather easily, a lot of Fourier transforms is used so as to reconstruct the pattern oft concentric spheres surrounding the antenna; the operation is well-known as acoustic holography.

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敲竹杠

A Constrained Adaptive Beamformer Tolerant of Array Gain and Phase Errorsethod consists of setting certain of the adaptive parameters of a conventional adaptive beamformer to zero. It provides a means of rejecting large signals incident on the side lobes of an antenna array while preserving small broadband and narrowband and large broadband signals incident in the steeri