Abstract
Part one of a two-part paper analyses the performances of the ultra broad-band antennas which are the key components in the broadband passive guidance in details. Two kinds of passive direction-finding schemes which have wide fields of vision are raised and analyzed in this part. Because of the uncertainty of the phase-centers of the antennas, the usual amplitude sun-subtraction monopulse technique can not be used to find the direction of a radiative source in a wide frequency range. A beam-operation network which can be used to form two secant beams from single broad-band spiral antenna is able to applied in the amplitude-monopulse system. An algorithm to eliminate the angle-confusion in the amplitude-phase monopulse direction-finding system is also studied.
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References
Shao Yaoding, “Analysis of the Wideband Passive Guidance”, the National Journal of Guidance and Fusee, July, 1995, p.27–39.
J.A. Mosko, “An Introduction to Wideband, Two-channel Direction-finding System”, Microwave Journal, Feb., 1984, p.91–106.
Ma Hong, et al, “The Antenna Arrangement in Active/Passive Compound Guidance”, Huazhong University of Science and Technology (HUST), Technical Report, Oct. 1997.
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Ma, H., Qi, L. & Zhu, M. The Performances of the Antennas in Active/Passive Compounded Guidance Part I: Broad-Band Antennas and Passive Direction-Finding Schemes. International Journal of Infrared and Millimeter Waves 19, 107–117 (1998). https://doi.org/10.1023/A:1022622730528
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DOI: https://doi.org/10.1023/A:1022622730528