the multi gigahertz ghz range the antenna 102 may be omni directional antenna according to an example embodiment of the invention the amplifier 104 may be a low noise amplifier lna and or a variable gain amplifier vga although other types of amplifiers may be used without departing from example embodiments of the invention the wavelet pulse generator 106 may include a digital wavelet generator 114 a local oscillator 116 a phase shifter 118 such as a 90 u00b0 phase shifter and multipliers 120 a and 120 b analog correlator 108 a may include multiplier 122 integrator 124 a store and hold s h circuit 126 an amplifier 128 and an analog to digital converter adc 130 likewise analog correlator 108 b may include multiplier 132 integrator 134 a store and hold s h circuit 136 an amplifier 138 and an analog to digital converter adc 140 the timing control 112 may provide timing signals utilized by the wavelet pulse generator 106 the analog correlator 108 a and the analog correlator 108 b referring to fig1 the wavelet generator 114 may generate a chain of wavelet bases w t as will be described in further detail the resolution associated with these wavelet bases w t may be varied in accordance with example embodiments of the invention.