Use of difference channel information for detection in monopulse radars

Monopulse radar track‐before‐detect using Bernoulli filter

“…The beam patterns of the monopulse radar are often well approximated to within 0.1 dB of the true pattern out to the peak of the first sum beam sidelobe [2]. Taking phase monopulse for example, the sum and difference beam patterns can be approximated by the following expressions [22]: $$$S(\theta )=\mathrm{cos}\,{(\theta )}^{\frac{\mathrm{log}(1/\sqrt{2})}{\mathrm{log}(\mathrm{cos}(\beta /2))}}\mathrm{cos}\left(\frac{\pi C}{\lambda }\mathrm{sin}(\theta )\right)$$$ $$$D(\theta )=\mathrm{cos}\,{(\theta )}^{\frac{\mathrm{log}(1/\sqrt{2})}{\mathrm{log}(\mathrm{cos}(\beta /2))}}\mathrm{sin}\left(\frac{\pi C}{\lambda }\mathrm{sin}(\theta )\right)$$$ where β is the half‐power beamwidth of each antenna, C is the distance between the two antennas, and λ is the wavelength.…”

“…In Refs. [2][3][4][5], joint detection and estimation (JDE) in the monopulse system is studied. The signal in the difference channel participates in the detection and brings some benefits in detection when the target is not at the beam centre.…”

Monopulse antenna‐pointing system modelling and simulation

“…The information on the target angular position is determined through comparing signals received in two or more simultaneous beams [6]. However, designing monopulse pointing system in real time still seems to be challenging [7].…”

A high performance SoPC based digital receiver for monopulse tracking radar

“…However, designing monopulse radar system in real-time is still challenging [7], [8] as the processing procedure is involved with crucial computational processing, complicated control and scheduling logic. Conventional real-time monopulse processing system uses multiple digital signal processors (DSPs) chips as hardware (HW) platform for engineering implementation, and this causes extremely large in system size and inefficiency in power consumption.…”