Correspondence: Performance of recursive moving target indication (MTI) filters with finite number of samples
Hussain Al-Ahmad, G.B. Lockhart · IEE Proceedings F Communications Radar and Signal Processing · 1982
The dynamic frequency response of a recursive MTI filter is usually calculated by simulating the in-phase and quadrature channels and the improvement factor determined by using numerical integration. An equivalent nonrecursive filter is described which simplifies calculation for recursive filter characteristics, with and without initialisation.