Abstract: An adaptive information compression system and method conserves information bandwidth or storage space by compressing underutilized information present in a wide-band signal into a much narrower maximum utilized information band signal. This is achieved by obtaining a spectral concentration map of an input wide-band signal by transforming the wide-band signal into the frequency domain and de-selecting the data space where there is substantially little spectral activity. A narrow-band signal is created by reformatting the remaining data space into a contiguous narrow-band signal. The original time-domain image of the data, which has the inactive spectra removed, is reconstructed from the narrow-band signal, thus allowing the total time-domain bandwidth to be significantly less than the original.

Abstract: An adaptive information compression system and method conserves information bandwidth or storage space by compressing underutilized information present in a wide-band signal into a much narrower maximum utilized information band signal. This is achieved by obtaining a spectral concentration map of an input wide-band signal by transforming the wide-band signal into the frequency domain and de-selecting the data space where there is substantially little spectral activity. A narrow-band signal is created by reformatting the remaining data space into a contiguous narrow-band signal. The original time-domain image of the data, which has the inactive spectra removed, is reconstructed from the narrow-band signal, thus allowing the total time-domain bandwidth to be significantly less than the original.

Abstract: A proximity fuze of adjustable maximum range, configured to detect target pulses reflected only from a target within the lethality range of the associated warhead. My invention comprises a wideband switchable video amplifier connected to receive target pulses detected by a detector, and serving to supply therefrom an amplified version of the pulses to a pulse counter. The wideband switchable video amplifier is connected to receive signals from a gate generator, which signals do not interfere with the passage through the video amplifier of pulses representative of a target that will fall within the lethality range of the associated warhead. However, the gate generator provides blanking signals to the video amplifier that serve to prevent pulses reflected from a target outside such lethality range from reaching thepulse counter, and therefore preventing inappropriate detonation of the warhead. Quite advantageously, my novel fuze concept is usable with electro-optical devices or with radar.

Abstract: A portable housing is shown for containing and protecting a hand held radio transmitter-receiver and a relatively large power supply, such housing being of three molded basic sections with a handle attached thereto, the radio being removable from said housing.