Howtosignalprocessing
What is lfm in radar?
In modern radar and communication systems, Linear Frequency Modulation (LFM) signal is a kind of typical non- stationary signal. It is important to recognition and estimate the parameter of LFM signal fast and precisely for radar electronic reconnaissance and resistance system.
What is LFM waveform?
An LFM waveform is a signal in which a frequency increases (up-chirp) or decreases (down-chirp) linearly with time, and the LFM waveform is obtained by. x ( t ) = exp j 2 π f 0 t + 1 2 α t 2 · 1 [ 0 , T p ] ( t ) (1) where T p , f 0 , and α are the pulse width, starting frequency, and chirp rate, respectively.
What is LFM chirp?
LFM Chirp Waveform. The linear chirp signal, or LFM signal, is widely used in sonar and radar systems [20]. A linear chirp is a sig- nal, in which the frequency linearly increases (up-chirp) or decreases (down-chirp) with time.
What is a radar waveform?
1.1 Introduction. A radar waveform is a signal defined in time, frequency, space, polarization, and modulation with the purpose of eliciting desired information from the illuminated environment.
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