A transmit signal is output from a transmitter towards a target and
towards interference. A combination signal is received at a receiver,
wherein the combination signal includes the transmit signal modified by
interacting with the target and the interference along with noise. The
receiver has a filter having a transfer function and the filter acts on
the combination signal to form a receiver output signal having a receiver
output signal waveform. The receiver output signal has a receiver output
signal waveform that describes an output signal to interference to noise
ratio (SINR) performance. Bandwidth and signal energy of the transmit
signal are reduced simultaneously by modifying the transmit signal
waveform and receiver output signal waveforms without sacrificing the
output SINR performance level.