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SIGNAL PROCESSING in RADAR SYSTEMS

Vyacheslav Tuzlukov

SIGNAL PROCESSING in RADAR SYSTEMS

SIGNAL PROCESSING in RADAR SYSTEMS

Vyacheslav Tuzlukov

Boca Raton London New York

CRC Press is an imprint of the

Taylor & Francis Group, an informa business

MATLAB® and Simulink® are trademarks of The MathWorks, Inc. and are used with permission. The MathWorks does not warrant the accuracy of the text or exercises in this book. This book’s use or discussion of MATLAB® and Simulink® software or related products does not constitute endorsement or sponsorship by The MathWorks of a particular pedagogical approach or particular use of the MATLAB® and Simulink® software.

CRC Press

Taylor & Francis Group

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© 2013 by Taylor & Francis Group, LLC

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Version Date: 20120629

International Standard Book Number-13: 978-1-4398-2608-9 (eBook - PDF)

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To the undying memory of Dr. Peter Tuzlukov, my dear father and teacher

Contents

Preface..............................................................................................................................................

xv

Author..............................................................................................................................................

xix

Introduction.....................................................................................................................................

xxi

Part I  Design of Radar Digital Signal Processing and Control Algorithms

Chapter 1 Principles of Systems Approach to Design Complex Radar Systems..........................

3

1.1

Methodology of Systems Approach...................................................................

3

1.2

Main Requirements of Complex Radar Systems...............................................

6

1.3

Problems of System Design for Automated Complex Radar Systems.............

13

1.4

Radar Signal Processing System as an Object of Design................................

15

1.5

Summary and Discussion.................................................................................

21

References...................................................................................................................

 

23

Chapter 2 Signal Processing by Digital Generalized Detector in Complex Radar Systems.......

25

2.1

Analog-to-Digital Signal Conversion: Main Principles...................................

25

 

2.1.1

Sampling Process................................................................................

25

 

2.1.2 Quantization and Signal Sampling Conversion..................................

29

 

2.1.3 Analog-to-Digital Conversion: Design Principles and Main

 

 

 

Parameters...........................................................................................

30

 

 

2.1.3.1 Sampling and Quantization Errors......................................

30

 

 

2.1.3.2 Reliability............................................................................

32

2.2

Digital Generalized Detector for Coherent Impulse Signals...........................

32

 

2.2.1

Matched Filter.....................................................................................

32

 

2.2.2

Generalized Detector..........................................................................

34

 

2.2.3

Digital Generalized Detector..............................................................

36

2.3

Convolution in Time Domain...........................................................................

39

2.4

Convolution in Frequency Domain..................................................................

47

2.5

Examples of Some DGD Types........................................................................

52

2.6

Summary and Discussion.................................................................................

53

References...................................................................................................................

 

55

Chapter 3 Digital Interperiod Signal Processing Algorithms.....................................................

57

3.1

Digital Moving-Target Indication Algorithms.................................................

57

 

3.1.1 Principles of Construction and Efficiency Indices..............................

57

 

3.1.2

Digital Rejector Filters........................................................................

60

 

3.1.3 Digital Moving-Target Indicator in Radar System with Variable

 

 

 

Pulse Repetition Frequency

66

 

3.1.4 Adaptation in Digital Moving-Target Indicators.................................

67

vii

viii

 

 

Contents

3.2 DGD for Coherent Impulse Signals with Known Parameters.........................

 

69

3.2.1

Initial Conditions................................................................................

 

69

3.2.2 DGD for Target Return Pulse Train....................................................

 

72

3.2.3 DGD for Binary Quantized Target Return Pulse Train......................

 

74

3.2.4 DGD Based on Methods of Sequential Analysis................................

 

75

3.2.5 Software DGD for Binary Quantized Target Return Pulse Train......

81

3.3 DGD for Coherent Impulse Signals with Unknown Parameters.....................

 

82

3.3.1 Problem Statements of Digital Detector Synthesis.............................

 

82

3.3.2

Adaptive DGD....................................................................................

 

84

3.3.3

Nonparametric DGD...........................................................................

 

87

 

3.3.3.1

Sign-Nonparametric DGD...................................................

 

88

 

3.3.3.2

Rank-Nonparametric DGD.................................................

 

89

3.3.4

Adaptive-Nonparametric DGD...........................................................

 

91

3.4 Digital Measurers of Target Return Signal Parameters...................................

 

93

3.4.1 Digital Measurer of Target Range.......................................................

 

94

3.4.2Algorithms of Angular Coordinate Estimation under Uniform

Radar Antenna Scanning 95

 

3.4.3 Algorithms of Angular Coordinate Estimation under Discrete

 

 

Radar Antenna Scanning

100

 

3.4.4 Doppler Frequency Measurer............................................................

103

3.5

Complex Generalized Algorithms of Digital Interperiod Signal Processing......

105

3.6

Summary and Discussion...............................................................................

108

References.................................................................................................................

111

Chapter 4 Algorithms of Target Range Track Detection and Tracking....................................

115

4.1 Main Stages and Signal Reprocessing Operations.........................................

117

 

4.1.1 Target Pip Gating: Shape Selection and Dimensions of Gates.........

119

 

4.1.2 Algorithm of Target Pip Indication by Minimal Deviation

 

 

from Gate Center...............................................................................

122

 

4.1.3 Target Pip Distribution and Binding within Overlapping Gates.......

125

4.2 Target Range Track Detection Using Surveillance Radar Data.....................

128

 

4.2.1 Main Operations under Target Range Track Detection....................

128

 

4.2.2 Statistical Analysis of “2m + 1/n” Algorithms under False

 

Target Range Track Detection 129

 

4.2.3 Statistical Analysis of “2m + l/n” Algorithms under True Target

 

 

 

Range Track Detection

135

4.3

Target Range Tracking Using Surveillance Radar Data................................

138

 

4.3.1 Target Range Autotracking Algorithm.............................................

138

 

4.3.2 United Algorithm of Detection and Target Range Tracking.............

142

4.4

Summary and Discussion...............................................................................

143

References.................................................................................................................

 

146

Chapter 5 Filtering and Extrapolation of Target Track Parameters Based on Radar Measure.....

149

5.1

Initial Conditions............................................................................................

150

5.2

Process Representation in Filtering Subsystems............................................

150

 

5.2.1

Target Track Model...........................................................................

150

 

5.2.2

Measuring Process Model.................................................................

153

5.3Statistical Approach to Solution of Filtering Problems of Stochastic

(Unknown) Parameters 155

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