Some Results on Pulse-Burst Radar Design

New Figures of Merit for Pulse Compression Sequences

“…: on signal design. Integer Huffmann sequences [8], amplitude and phase-modulated sequences [4,[12][13][14][15][16][17][18][19], sequences with good ambiguity function [20][21][22][23][24][25][26], ternary periodic sequences [27][28][29][30][31] and frequency-coded sequences with sparse pulse bursts [32,33] are all examples wherein perfect energy efficiency is accepted as an ideal to attain, if possible, but not as a rigjd requir~ment which must be met. This has the advantage of knowing what improved performance in other resp~cb can be achieved if the insistence on ideal energy efficiency is relaxed.…”

Design of Optimal Radar Signals Subject to a Fixed Amplitude Constraint

“…Writing ui = ua exp(ki), u, I, i E R', one can see that our problem is one of maximizing a real-valued function of 2N real variables (the ui5 and Oi) subject to N constraints, uiI = 1. (5) subject to the constraints (1). A careful look at the right-hand side of (5) indicates that is possible to get rid of the constraints in the minimization problem by substituting them in (5) …”

“…The optimal signal and weighting vectors are shown in Figs. 5 (N=32, d=O), 6 (N=32, d=0.25), and 7 (N=32, d=0.65). Again, for the sake of comparison, the signal and weighting vectors for the constrained energy case are also plotted.…”

“…The desire to generate optimal transmitter waveforms with a limited amount of amplitude variation is the motivation behind the approach taken in [2]. Recently, Zeoli [5] has presented results on the comparison of a "practical" amplitude taper with the optimal amplitude taper with no transmitter phase modulation. The present study indicates what performance can be obtained when only phase modulation is used in the transmitter waveform and its amplitude is taken to be constant.…”