passive radar and ambiguity function correctionDTV‐T signal specificationsignal ambiguity functioncomplex envelope spectrumDTV‐T waveformsmismatched signal processingDTV‐T waveform and blocked GIradar performance and ranging signal parametersSummary This chapter contains sections titled: Introduction DTV-T ...
1. On the Fractional Wideband and Narrowband Ambiguity Function in Radar and Sonar [J] . Borden B. IEEE signal processing letters . 2006,第9期 机译:雷达和声纳的分数宽带和窄带歧义函数 2. Azimuthal ambiguities in synthetic aperture sonar and synthetic aperture radar imagery [J] . Rolt K...
4.1 AMBIGUITY FUNCTION DEVELOPMENT Since the ambiguity function can be thought of as the response of a signal processor to a received radar waveform, this is the approach we take in deriving the ambiguity function. Let the transmitted waveform be represented by the base-band signal, . Recall ...
The Ambiguity Function shows how well systems that use different types of radar pulses can measure the transit time of the pulse (hence the range to the target) and the Doppler shift in the frequency of the returned pulse (hence the velocity of the target). Because the parameters, range, ...
Sincetheambiguityfunctioncanbethoughtofastheresponseofasignalprocessortoareceivedradarwaveform,thisistheapproachwetakeinderivingtheambiguityfunction. Letthetransmittedwaveformberepresentedbythebase-bandsignal,.[1]Thenormalized(base-band)signalreceivedfroma(constantrange-rate)targetatarangeandrange-rateisgiven...
Because of all the peaks, this kind of ambiguity function is called abed of nailsambiguity function. Stepped FM Waveform The linear FM waveform is very widely used in radar systems. However, it does present some challenges to the hardware. For one thing, the hardware has to be able to swee...
Wilcox [63] provided much of the basis of the early work on the ambiguity function for applications to radar. The ambiguity function is one of several time-frequency representations that have found their way into applications: the Wigner-Ville distribution [57], the exponential distribution [9],...
s discrimination information. It enables us to derive certain information criteria, applied in system identification, which is the main reason for us to include this function in our presentation. In [SCH73] the author — referring to radar engineering — presents the ambiguity function, which ...
Radar and Inverse Scattering Ambiguity Function The ambiguity function is the two-dimensional (2-D) autocorrelation of waveform in time and frequency. It can be described as: (10.50)X(t,f)=∫−∞∞μ(τ)μ*(t+τ)ej2πfτdτ, where X(t, f) is the 2-D ambiguity function in time...
The ambiguity functions of a kind of direct chaotic radar system are investigated. In this radar system, a microwave chaotic Colpitts oscillator is employed to generate the source signal that is directly transmitted through a wideband antenna without modulation. The auto-ambiguity function of this rad...