论文信息 - Small Aperture Angle Measurement for Active Echo Location Systems

Small Aperture Angle Measurement for Active Echo Location Systems

The problem of bearing estimation for active systems is examined from the point of view of the generalized wideband ambiguity function (GAF). The maximum likelihood (ML) estimator is derived and its local and global properties are discussed. A structure is proposed which searches the three-dimensional ambiguity surface in two stages first, in range-Doppler, and then, in bearing with the goal of reducing search complexity when utilizing highly resolvent waveforms. Comparisons are made between the ML estimators and structures utilizing phase information which generate closed form estimators. The beneficial results of full bandwidth utilization are discussed in terms of both local and global properties of the GAF.

D.W. Ricker

[1] Leon I-I. Sibul,et al. Generalized wideband crossambiguity function , 1981, ICASSP.

[2] J.P. Costas,et al. A study of a class of detection waveforms having nearly ideal range—Doppler ambiguity properties , 1983, Proceedings of the IEEE.

[3] Harry Urkowitz,et al. The Accuracy of Maximum Likelihood Angle Estimates in Radar and Sonar , 1964, IEEE Transactions on Military Electronics.

[4] Philip M. Woodward,et al. Probability and Information Theory with Applications to Radar , 1954 .

[5] Edward Titlebaum,et al. Time-Frequency HOP Signals Part II: Coding Based upon Quadratic Congruences , 1981, IEEE Transactions on Aerospace and Electronic Systems.

[6] A. Piersol. Time delay estimation using phase data , 1981 .

[7] John D. Hatlestad. Phase comparison time delay estimation using wideband signals , 1986 .

[8] Van Trees,et al. Detection, Estimation, and Modulation Theory. Part 1 - Detection, Estimation, and Linear Modulation Theory. , 1968 .

[9] A. W. Rihaczek. Principles of high-resolution radar , 1969 .

[11] E. J. Kelly,et al. The Detection of Radar Echoes in Noise. I , 1960 .

[12] R.A. Altes. Target position estimation in radar and sonar, and generalized ambiguity analysis for maximum likelihood parameter estimation , 1979, Proceedings of the IEEE.