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Lec 4b_Tracking Radars - Mono-pulse Tracking What is...

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Mono-pulse Tracking What is mono-pulse tracker? A tracker in which information regarding the angular location of a target is obtained by comparison of signals received in two or more simultaneous beams. Methods by which a mono-pulse angle measurement can be made are: Amplitude Comparison Mono-pulse Phase Comparison Mono-pulse 17
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Amplitude Comparison Mono-pulse Tracking For simplicity, the method is first described for the measurement of only one angle coordinate Amplitude Comparison Mono-pulse Method: Use pairs of slightly offset beams to determine the location of the target relative to the antenna bore sight (error signal) Use this information to re-steer the antenna (or beam) to keep the target very close to the antenna bore sight The sum and difference of the two squinted beams are used to generate the error signal Each channel (sum, azimuth difference, and elevation difference) requires a separate receiver 18
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Amplitude Comparison Mono-pulse Tracking 19 Two squinted Antenna Beams (Polar Coordinates) Sum Pattern of two Squinted
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