The Superiority Analysis of Linear Frequency Modulation and Barker Code Composite Radar Signal

2013 ◽  
Author(s):  
Yang Chunhong ◽  
Liu Zengli
Keyword(s):  
Frequency Modulation ◽  
Linear Frequency Modulation ◽  
Radar Signal ◽  
Linear Frequency ◽  
Barker Code

ESTIMATION OF SHAPE PARAMETERS OF SPACE OBJECTS WITH USE OF WIDEBAND RADAR SIGNALS

2018 ◽  
pp. 50-56 ◽  
Author(s):  
V. N. Lagutkin
Keyword(s):  
Frequency Modulation ◽  
Spectral Characteristics ◽  
Linear Frequency Modulation ◽  
Radar Signal ◽  
Complex Conjugate ◽  
Complex Spectrum ◽  
Radio Waves ◽  
Linear Frequency ◽  
Space Objects ◽  
Radar Signals

Theoretical questions of parametric descriptions of received broadband radar signals, in particular, signals with linear frequency modulation, and their processing for evaluation of form parameters of tracked space objects are considered. Analytical expressions for the received broadband radar signal at the output of the antenna system and its spectrum are obtained. Received expression take into account the spectral characteristics of polarization matrix of radio waves backscattering from space objects, as well as movement parameters of monitored objects. Address issues of physical diffraction theory methods for calculating spectral characteristics of radio waves backscattering from space objects. At considering of processing of received broadband signals from objects they are represented as the sum of component from individual «shining spots», then parameters of objects form are number of «shining spots», delays and complex amplitudes of their signals. It is shown that sufficient statistics at processing of received broadband signals to evaluate form parameters of space objects is the Fourier transform of product of complex conjugate of complex spectrum of envelope received signal and spectrum of complex envelope of sounding signal, modified in view of object movement. On the basis of computations of delay response functions for axisymmetric objects with circular kinked surfaces and sounding signals with linear frequency modulation the features of the task of evaluating the form parameters of space objects are shown and general requirements for parameters of sounding signals, for energy and a range of angles of observation are formulated.

scholarly journals Co-designed radar-communication using linear frequency modulation waveform

2016 ◽  
Author(s):  
Michael J. Nowak ◽  
Zhiping Zhang ◽  
Yang Qu ◽  
Dimitri A. Dessources ◽  
Michael Wicks ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Linear Frequency Modulation ◽  
Linear Frequency
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