1. A method for detecting targets in a plurality of target classes, the method comprising: configuring an over-the-horizon radar in a staring mode to monitor an area of interest; transmitting a radar beam on a fixed bearing at a fixed bandwidth and a fixed waveform repetition frequency (WRF) to illuminate the area of interest; receiving and pre-processing radar backscattered energy from the area of interest to generate radar data; storing the radar data in a plurality of buffers; and processing the buffered radar data in parallel channels to determine positions of targets present in the area of interest, each channel corresponding to a respective one of the target classes.