The CLFM: A Method of Generating Linear Frequency-Coded Radar Pulses |
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Authors: | Kibbler G O T H |
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Institution: | The MITRE Corporation, Bedford, Mass.; |
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Abstract: | A simple method of generating a coherent linear frequency-modulated pulse, suitable for use in a radar pulse-compression system, is described. The method, termed CLFM, employs a swept-frequency oscillator with closed-loop control of its phase. The phase-error voltages for the loop are obtained by sampling the waveform at regular intervals. The sampling technique itself is unconventional and avoids the need for large bandwidth circuitry. Results obtained with a demonstration model of the CLFM, generating a signal with a time-bandwidth product of 1000, are described. |
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