## Resolution in frequency-modulated radars |

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AMBIGUITY DIAGRAM amplitude modulation approximation auto-correlation function average phase bandwidth corresponding cosine delay difference frequency doppler frequency doppler shift equations 2.l3 FILTER FM Altimeter FM radar FM system forms of modulation Fourier series Fourier transform FREQUENCY-MODULATED RADARS function of range Gaussian harmonic Harry Diamond hence instantaneous phase integral JITTERED magnitude Mario Tozzi mixer output voltage modulation frequency modulation index modulation period modulation rate obtained ohase order lines periodic modulation phase difference phase modulation PHASOR DIAGRAMS PHASOR RELATIONSHIP post-mixing signal post-mixing spectrum power spectrum quency range and velocity range function range gate range resolution range response range side lobes received signal reference signal relative motion result return signal SAWTOOTH FREQUENCY MODULATION sawtooth modulation second mixers shown in figure signal energy sine-wave modulation SPECTRA spectral lines TARGET SEPARATION TARGETS SHOWING EFFECT tion transmitted signal triangular and sawtooth triangular modulation VELOCITY GATES velocity resolution waveform width