Development of a High Resolution X-Ray Imaging-Spectrometer

Not Available The key innovation of this proposal is use of Time Modulated Ultra-wideband (TM-UWB) transmissions to implement low cost, low power phased array radar and radio. Within the last few years low cost ultra-high precision oscillators have become available, and these now make it possible to build TM-UWB radar and communication systems which have no baseband frequency. The only signals transmitted are single pulses which can be generated by a single transistor which is either on or off. Impulses in the time domain generate very wide bandwidth signals in the frequency domain, and the signals generated by our current hardware have bandwidths in the gigahertz range. Since the transmission effectively happens over gigahertz bandwidth, this type of radar and radio is virtually impossible to detect and infeasible to jam. TM-UWB radio requires no frequency allocation since energy is effectively transmitted on a wide band of frequencies simultaneously. Likewise, as long as users use a different pseudo-random pulse timing, there will be no interference between users, and there is no problem with multipath transmission. Gigahertz transmission rates are achievable. Because all that is transmitted is binary pulses, implementation of phased array system is easy and effective.