《Aerospace Telemetry Volume Ⅱ》

1.SATELLITE AND SPACE PROBE TELEMETRY1

by Robert W.Rochelle1

PART A.CHARACTERISTICS OF SPACE MODULATION SYSTEMS1

1.0 Introduction to Space Telemetry1

2.0 Space Channel2

3.0 Galactic Noise3

4.0 Communications Effciency4

5.0 Telemetry Systems Analysis20

PART B.SATELLITE TELEMETRY SYSTEMS23

1.0 Source Encoding23

2.0 Channel Encoding26

3.0 Data Storage Systems30

4.0 Spacecraft Transmitters33

5.0 Spacecraft Antennas34

PART C.SPACE PROBE TELEMETRY36

1.0 Introduction36

2.0 Group Codes36

3.0 Parity Codes40

4.0 Microelectronics41

PART D.COMMAND AND TRACKING45

1.0 Command Systems45

2.0 Tracking50

PART E.DATA ACQUISITION AND PROCESSING55

1.0 Introduction55

2.0 Ground Station Equipment55

3.0 Data Processing58

4.0 Computer Processing59

2.FM DATA SYSTEMS60

by J.H.Crow60

PART A.HISTORY OF THE FM MULTIPLEX60

1.0 Introduction60

2.0 The FM/FM Technique61

PART B.THEORY OF FREQUENCY MODULATION63

1.0 Theory of Frequency Modulation63

PART C.FM DATA SYSTEM ANALYSIS71

1.0 System Accuracy71

2.0 Type Ⅰ FM Data System73

3.0 TypeⅡFM Data System83

4.0 Type Ⅲ FM Data System93

5.0 Type Ⅳ FM Data System96

6.0 Type Ⅴ FM Data System99

3.SINGLE SIDEBAND FM TELEMETRY105

by Walter O.Frost105

PART A.INTRODUCTION TO SS/FM TELEMETRY105

1.0 SS/FM Defined105

2.0 Telemetering of Wideband Data106

3.0 History and Background108

PART B.PRINCIPLES OF SS/FM110

1.0 Single Sideband Modulation and Demodulation110

2.0 Characteristics of Wideband Data112

3.0 Operation of the SS/FM Transmission Link116

4.0 S/N Performance of SS/FM123

5.0 Crosstalk Noise in SS/FM130

6.0 Summary of Part B131

PART C.DESIGN AND APPLICATION OF SS/FM EQUIPMENT131

1.0 Introduction131

2.0 SS Modulation Techniques132

3.0 SS Channel Separation and Demodulation136

4.0 Carrier Generation and Reconstruction142

5.0 Automatic Deviation Control149

6.0 Pilot Signal Conditioning and Processing152

7.0 System Design Considerations154

8.0 Summary and Conclusions164

4.ADAPTIVE TELEMETRY―DATA COMPRESSION167

by Daniel Hochman and Donald R.Weber167

PART A.INTRODUCTION TO ADAPTIVE TELEMETRY167

1.0 Background167

2.0 Definition168

3.0 Sampled Data System168

PART B.PRINCIPLES OF DATA COMPRESSION169

1.0 Introduction169

2.0 Adaptive Sampling170

3.0 Redundancy Reduction171

3.1 Polynomial Predictors175

4.0 Data Reconstruction and Presentation179

PART C.ELEMENTS OF REDUNDANCY REDUCTION SYSTEMS783

1.0 Introduction183

2.0 System Organization184

3.0 Miscellaneous Consideration188

PART D.APPLICATIONS OF REDUNDANCY REDUCTION190

1.0 Design of a Data Compressor Employing Redundancy Reduction190

2.0 Ground Applications of Data Compression198

PART E.CONCLUSIONS202

5.PACM-PULSE AMPLITUDE/CODE MODULATION202

by Warren F.Link202

PART A.SYSTEM DESCRIPTION202

1.0 General202

2.0 Data Encoding and Formating203

3.0 Mechanizationand Relationship to Other Telemetry Systems206

PART B.SYSTEM DESIGN210

1.0 Word Format210

2.0 Synchronization Methods214

3.0 Frame Structure―Parameter Selection216

4.0 Design Example219

5.0 Carrier Considerations225

PART C.VEHICLEBORNE EQUIPMENT230

1.0 General230

2.0 Data Encoding and Logical Design232

3.0 Transmitter241

PART D.GROUND EQUIPMENT242

1.0 General242

2.0 Subsystem Descriptions243

3.0 Data Recording250

4.0 Computer Entry250

APPENDIX252

3-A Signal-to-noise Performance of an SS/FM Transmission Link252

INDEX255