Multihypothesis tracking with electronically scanned radar

Modeling and parameter optimization of agile beam radar tracking

“…Maximum number of successive illuminations in initial search process N Number of track-revisits during tracking time T track N R Receiver noise energy N 1 , N 2 Additive receiver noises of inphase and quadrature phase channels…”

“…The measurement model is given in [1,2]. It is assumed in the literature that the received signal energy is proportional to the transmitted energy, but decreases with losses due to beam pointing error so that the SNR of the received signal, denoted by the quantity SNR, can be represented by…”

“…2 Assuming that (A 1 + N 1 ) 2 + (A 2 + N 2 ) 2 is measurable and N R is known, we estimate SNRT by its estimator [1] as…”

“…The volume of the validation gate is denoted by V G . We use the following assumptions 2 More exact expressions of the angular measurement error can be found in [9,21]. on the false measurements due to noise and clutter: the number of clutter interference occurrences in the validation gate Z G is Poisson distributed with parameter ½V G (½V G ¿ m), where ½ is the expected number of clutter measurements per unit volume in the measurement space; the number of false measurements in the validation gate due to receiver noise has a Poisson distribution with parameter mP F V G =V C (P F V G =V C ¿ 1), where V C denotes the angular volume that is covered in the measurement processing; and the false measurements due to noise and clutter are independent and uniformly distributed in the validation gate.…”

“…The allocation of an agile beam radar is a well-known problem and has been addressed in a large body of literature (see, for example, [1][2][3][4][5][6][7][8][9][10] and the references therein). The goal of the allocation is to minimize the use of agile beam radar resources while maintaining targets under track.…”