Tuesday, August 4, 2009


A nanosecond pulse doppler radar adapted to hypersonic ballistic range studies is disclosed. The doppler signal is processed to give a continuous record of amplitude and phase using conventional narrow band electronics. The nanosecond pulses transmitted by the radar are obtained through TWT amplification of the amplitude modulated output of a CW X-band oscillator. The received signal is TWT amplified, range-gated with a nanosecond diode modulator and then passed through a local oscillator-mixer-filter system that selects only one PRF line for subsequent narrowband amplification and signal processing. link....

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