Oscar Lowenschuss

Efficient partitioning for the batch-fabricated fourth generation computer

The computer industry is on the verge of an upheaval, due to drastically new hardware and modern computational concepts. Read-only memories which operate near 0.1 microseconds are available, while large-scale integration (LSI) offers the promise of inexpensive, batch fabricated processing of logic and storage elements. The problem which confronts the computer designer is how to use these elements in an efficient manner to take full advantage of their speed and flexibility. Many approaches have been proposed, but none have shown a clear solution to the problem. The concept presented in this paper is the result of extensive development activities.

Adaptive digital MTI detection filters

Abstract : The paper has presented an on-line adaptive procedure for adjusting a digital MTI detection filter such that clutter residue is minimized. The procedure is based upon the evaluation of the ratio of mean square values of filtered and unfiltered signals. Since ratios are involved, the technique is implicitly normalized. (Author)

A Velocity Adaptive MTI Filter

A method is presented for adaptively adjusting the parameters of a double MTI canceller to minimize the effects of frequency-shifted clutter spectra. The technique is implicitly gain normalized, such that changing power levels do not affect system performance. The use of ¿look ahead¿ methods and ¿fading memory¿ filtering allows for real-time tracking of the center frequency of the clutter spectra.