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1. |
Record Nr. |
UNISA996199311903316 |
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Titolo |
2000 IEEE International Conference on Personal Wireless Communications : Hyderabad, India, December 17-20, 2000 |
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Pubbl/distr/stampa |
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[Place of publication not identified], : IEEE, 2000 |
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Disciplina |
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Soggetti |
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Personal communication service systems |
Wireless communication systems |
Mobile communication systems |
Electrical & Computer Engineering |
Engineering & Applied Sciences |
Telecommunications |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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2. |
Record Nr. |
UNINA9910483666403321 |
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Autore |
Yang Tingwu |
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Titolo |
Telemetry theory and methods in flight test / / Tingwu Yang ; translated by Yufeng Yang, Ting Zhang |
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Pubbl/distr/stampa |
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Gateway East, Singapore : , : Springer, , [2021] |
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©2021 |
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ISBN |
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Descrizione fisica |
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1 online resource (475 pages) |
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Disciplina |
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Soggetti |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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Intro -- Preface -- Brief Introduction of the Content -- Terms and Definitions -- 1 Equipment Terms -- 2 Telemetry Terms -- 3 Data Processing Terms -- 4 Terms About Measurement Error and Uncertainty -- Contents -- 1 Overview -- 1.1 Introduction -- 1.2 Aeronautical Flight Test -- 1.3 Measurement During Aeronautical Test Flight -- 1.4 Flight Test Telemetry -- 1.4.1 Basic Concepts -- 1.4.2 Function -- 1.4.3 Characteristics -- 1.4.4 Main Equipment Used for Flight Test Telemetry -- 1.4.5 General Operating Procedure of Flight Test Telemetry -- References -- 2 Basic Theory of Flight Test Telemetry -- 2.1 Signals and Noises -- 2.1.1 Signals [1, 2] -- 2.1.2 Method of System Response Analysis -- 2.1.3 Random Process -- 2.1.4 System Transmission Characteristics -- 2.1.5 Noises -- 2.2 Analysis of Time-Domain Discrete Signals [3, 4] -- 2.2.1 Time-Domain Discrete Signals -- 2.2.2 Time-Domain Discrete System -- 2.2.3 Linear Constant-Coefficient Differential Equations -- 2.2.4 Fourier-Series Transform of Sequence -- 2.2.5 Z-Series Transform -- 2.2.6 Discrete Fourier Transform -- 2.2.7 Fast Fourier Transform and Inverse Transformation -- 2.2.8 Wavelet [5, 6] -- 2.3 Parameter Estimation -- 2.3.1 Least-Squared Estimation [8, 9] -- 2.3.2 Maximum Likelihood Estimation -- 2.3.3 Optimization Algorithm Without Restraint [11, 12] -- 2.4 Fuzzy Mathematic Theory [9, 13] -- 2.4.1 Basic Concepts of Fuzzy Mathematics and Comprehensive Evaluation -- 2.4.2 Fuzzy Set and Its Computation -- 2.4.3 Fuzzy Relation and Its Operation -- |
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2.5 Error and Error Propagation Law -- 2.5.1 Test Error -- 2.5.2 Statistic Characteristics of Random Errors -- 2.5.3 Precision Index -- 2.5.4 Generalized Error Propagation Law -- 2.5.5 System Error Index -- 2.5.6 Correlations of Terms Related to Degree of Test Precision -- References -- 3 Aviation Sensors and Their Calibration. |
3.1 Introduction to Sensors -- 3.1.1 Definition of Sensors -- 3.1.2 Characteristics of Sensors [3] -- 3.1.3 Static Characteristics of Sensors [3] -- 3.1.4 Dynamic Characteristics of Sensors -- 3.2 Airborne Sensors -- 3.2.1 Altitude Sensor and Speed Sensor -- 3.2.2 Pressure Sensor -- 3.2.3 Force Sensors -- 3.2.4 Linear Acceleration Sensor -- 3.2.5 Angular Speed Sensors -- 3.2.6 Aircraft Attitude and Heading Sensor -- 3.2.7 AOA and SSA Sensors -- 3.2.8 Displacement Sensor -- 3.2.9 Temperature Sensor -- 3.2.10 Flow Sensor -- 3.2.11 Sensors Measuring Aircraft Power Characteristics -- 3.2.12 Vibrating Sensors -- 3.2.13 Other Sensors (Systems) -- 3.2.14 How to Choose a Sensor -- 3.3 Sensor Calibration -- 3.3.1 Types of Sensor Calibration -- 3.3.2 Non-Linear Regression Calibration Model -- 3.3.3 Neural Network Calibration Model [8] -- 3.3.4 Calibration Model of Inertial Navigation System [9] -- 3.4 New Types of Sensors -- 3.4.1 Smart Sensors [10] -- 3.4.2 New Principle Sensors -- 3.4.3 Sensors Using New Technologies -- References -- 4 Airborne Data Acquisition and Recording -- 4.1 Overview -- 4.1.1 Types of Airborne Data -- 4.1.2 Primary Performance and Structure of the Data Acquisition System -- 4.2 Signal Conditioning and Filtering -- 4.2.1 Signal Conditioning -- 4.2.2 Signal Filtering -- 4.3 Synchronous Sampling -- 4.3.1 Sampling, Quantizing, and Encoding -- 4.3.2 Multichannel Synchronous Sampling -- 4.3.3 PCM Data Frames -- 4.4 Data Acquisition -- 4.4.1 PCM Data Acquisition -- 4.4.2 Network Data Acquisition -- 4.4.3 Comparison -- 4.5 Data Transmission -- 4.5.1 Time-Division Multiplexing (TDM) -- 4.5.2 Wavelength Division Multiplexing (WDM) -- 4.6 Data Recording -- 4.6.1 Data Recording Types -- 4.6.2 Airborne Solid State Recorder -- 4.7 Network Performance -- 4.7.1 Methods for Detecting Network Performance -- 4.7.2 Performance Detection Indexes. |
4.8 Wireless Sensor Network -- 4.8.1 Concept of Wireless Sensor Network -- 4.8.2 Wireless Sensor Network Architecture -- 4.8.3 Wireless Network Properties -- 4.8.4 The Wireless Sensor Data Acquisition Network -- References -- 5 Telemetry Information Transmission -- 5.1 Wireless Channel -- 5.1.1 Relevant Terms and Their Relations -- 5.1.2 Influence of Earth Curvature on Visibility Distance -- 5.1.3 Transmission Loss of Radio Wave -- 5.2 Signal Modulation [2] -- 5.2.1 Modulation Methods -- 5.2.2 Analog Modulation -- 5.2.3 Digital Modulation -- 5.2.4 SOQPSK Modulation -- 5.2.5 OFDM Modulation -- 5.3 Multichannel Transmission -- 5.3.1 Introduction -- 5.3.2 Frequency-Division Multiplexing -- 5.3.3 Time-Division Multiplexing -- 5.3.4 Code-Division Multiplexing -- 5.3.5 Characteristics of Multichannel Transmission -- 5.3.6 Multi-carrier OFDM/TDMA Transmission -- 5.3.7 Single Carrier OFDM/TDMA Transmission -- 5.4 Transmitting and Receiving -- 5.4.1 Channel Coding -- 5.4.2 Source Coding -- 5.4.3 PCM Data Transmitting and Receiving System [12] -- 5.5 Security of Transmission Link -- 5.5.1 AES Algorithm -- 5.5.2 Hierarchical Protection -- References -- 6 Telemetry Data Processing and Analysis -- 6.1 Telemetry Data Pre-processing -- 6.1.1 Gross Error Filtering Algorithm -- 6.1.2 Gross Error Group Point Filtering Algorithm -- 6.1.3 Interpolation -- 6.1.4 Spline Function -- 6.1.5 Curve Fitting and Smoothing -- 6.2 Solving Algorithm of Non-linear Equation -- 6.2.1 Directly Solving Quadratic, Cubic, and Quartic Equations -- 6.2.2 Newton Solution for Transcendental Equations -- 6.2.3 Numerical Integration |
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and Numerical Differentiation -- 6.3 Vibration Signal Analysis Based on Fourier Transform [3] -- 6.3.1 Introduction -- 6.3.2 Fourier Transform -- 6.3.3 Vibration Characteristics Analysis Method [5] -- 6.3.4 Vibration Data Analysis. |
6.4 Flutter Test Data Analysis Based on Wavelet [7] -- 6.4.1 Introduction -- 6.4.2 Multidimensional Laplace Wavelet [12, 13] -- 6.4.3 Numerical Emulation -- 6.4.4 Applications of Two-Dimensional Laplace Wavelet -- 6.4.5 Analysis of Flight Test Flutter Data -- 6.5 Flight Test Safety Monitoring -- 6.5.1 Data Processing in Real Time -- 6.5.2 Safety Monitoring in Real Time -- 6.6 Analysis of Measurement Uncertainty -- 6.6.1 Calculation Error -- 6.6.2 Measurement Uncertainty [14, 15] -- References -- 7 Test Data Management and Data Mining -- 7.1 Flight Test Data Management [1] -- 7.1.1 Characteristics of Flight Test Data -- 7.1.2 Service-Oriented Architecture (SOA) [2-4] -- 7.1.3 SOA-Based FTDMS [5] -- 7.1.4 Distributed Test Data System -- 7.2 Data Warehouse and Data Mining -- 7.2.1 Introduction to Data Warehouse -- 7.2.2 Structure and Characteristics of Data Warehouse -- 7.2.3 Data Mining -- 7.2.4 Clustering Reduction Method of Flight Test Data [11] -- 7.2.5 Fuzzy Comprehensive Evaluation Method of Flight Test Data -- 7.2.6 Visualization Data Mining Method -- 7.3 Application of Big Data and Cloud Technology [19, 20] -- 7.3.1 Proposing of Problems -- 7.3.2 Basic Concept of Cloud Computing -- 7.3.3 Cloud Computing in Flight Test -- 7.3.4 Development Trend -- References -- 8 Integrated Space-Ground Telemetry Network -- 8.1 Military Test Research Plan of U.S. DOD -- 8.1.1 Overview of Test Investment Plan -- 8.1.2 Test Integration Architecture -- 8.1.3 Basic Initiatives 2010 -- 8.1.4 Comprehensive National Cybersecurity Initiative -- 8.2 Integrated Telemetry Network -- 8.2.1 Introduction -- 8.2.2 Telemetry Networking Trend [8] -- 8.2.3 Network Architecture [9] -- 8.2.4 Real-Time Ethernet Transmission Protocol [9] -- 8.2.5 Time Synchronization -- 8.2.6 Network Data Packages -- 8.3 Prospect to Space-Ground Integrated Telemetry Network -- 8.3.1 System Structure. |
8.3.2 Telemetry Network System -- 8.3.3 Networking of Telemetry System -- 8.3.4 Network System Management -- 8.4 Summary -- References -- Appendix A Time System -- A.1 Significance of Time System -- A.2 Concepts About Time System -- A.2.1 Universal Time System -- A.2.2 Atomic Time System -- A.2.3 Dynamical Time System -- A.2.4 GPS Time System -- A.2.4.1 Definition -- A.2.4.2 Relation Between GPST and Beijing Time System -- A.2.5 GLONASS Time System -- A.2.6 BDS Time System -- A.2.6.1 Relationship Between BDST and Beijing Time System -- A.2.6.2 BDS Positioning Function -- Appendix B Telemetry Standards -- B.1 IRIG106 Telemetry Standard -- B.1.1 IRIG106-07 Telemetry Standard -- B.1.2 IRIG106-09 Telemetry Standard -- B.1.2.1 IRIG106-09 Telemetry Standard (Part I) -- B.1.2.2 IRIG106-09 Telemetry Standard (Part II) -- B.2 China's Telemetry Standards -- B.3 Integrated Network Enhanced Telemetry (iNET) Standard -- B.3.1 Brief Introduction of iNET Standard -- B.3.2 Test Article (TA) Standard -- B.3.3 RF Network Element (RFNE) Standard -- B.3.4 Communication Link (CL) Standard -- B.3.5 Component Interface (CI) Standard -- B.3.6 System Management (SM) Standard -- B.3.7 Metadata (MD) Standard. |
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3. |
Record Nr. |
UNINA9911019683103321 |
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Titolo |
Structural dynamics of electronic and photonic systems / / edited by Ephraim Suhir, David S. Steinberg, T.X. Yu |
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Pubbl/distr/stampa |
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Hoboken, N.J., : Wiley, 2010 |
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ISBN |
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9786613072368 |
9781283072366 |
128307236X |
9780470886656 |
047088665X |
9780470886793 |
047088679X |
9780470950012 |
0470950013 |
9780470886786 |
0470886781 |
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Descrizione fisica |
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1 online resource (610 p.) |
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Altri autori (Persone) |
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SuhirEphraim |
YuT. X <1941-> (Tongxi) |
SteinbergDavid S |
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Disciplina |
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Soggetti |
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Electronic apparatus and appliances - Reliability |
Optoelectronic devices - Reliability |
Fault tolerance (Engineering) |
Microstructure |
Structural dynamics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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Structural Dynamics of Electronic and Photonic Systems; Contents; Preface; Contributors; 1 Some Major Structural Dynamics-Related Failure Modes and Mechanisms in Micro- and Opto-Electronic Systems and Dynamic Stability of These Systems; 2 Linear Response to Shocks and Vibrations; 3 Linear and Nonlinear Vibrations Caused by Periodic |
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Impulses; 4 Random Vibrations of Structural Elements in Electronic and Photonic Systems; 5 Natural Frequencies and Failure Mechanisms of Electronic and Photonic Structures Subjected to Sinusoidal or Random Vibrations |
6 Drop/Impact of Typical Portable Electronic Devices: Experimentation and Modeling7 Shock Test Methods and Test Standards for Portable Electronic Devices; 8 Dynamic Response of Solder Joint Interconnections to Vibration and Shock; 9 Test Equipment, Test Methods, Test Fixtures, and Test Sensors for Evaluating Electronic Equipment; 10 Correlation between Package-Level High-Speed Solder Ball Shear/Pull and Board-Level Mechanical Drop Tests with Brittle Fracture Failure Mode, Strength, and Energy |
11 Dynamic Mechanical Properties and Microstructural Studies of Lead-Free Solders in Electronic Packaging12 Fatigue Damage Evaluation for Microelectronic Components Subjected to Vibration; 13 Vibration Considerations for Sensitive Research and Production Facilities; 14 Applications of Finite Element Analysis: Attributes and Challenges; 15 Shock Simulation of Drop Test of Hard Disk Drives; 16 Shock Protection of Portable Electronic Devices Using a "Cushion" of an Array of Wires (AOW); 17 Board-Level Reliability of Lead-Free Solder under Mechanical Shock and Vibration Loads |
18 Dynamic Response of PCB Structures to Shock Loading in Reliability Tests19 Linear Response of Single-Degree-of-Freedom System to Impact Load: Could Shock Tests Adequately Mimic Drop Test Conditions?; 20 Shock Isolation of Micromachined Device for High-g Applications; 21 Reliability Assessment of Microelectronics Packages Using Dynamic Testing Methods; 22 Thermal Cycle and Vibration/Drop Reliability of Area Array Package Assemblies; 23 Could an Impact Load of Finite Duration Be Substituted with an Instantaneous Impulse?; Index |
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Sommario/riassunto |
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"The proposed book will offer comprehensive and versatile methodologies and recommendations on how to determine dynamic characteristics of typical micro- and opto-electronic structural elements (printed circuit boards, solder joints, heavy devices, etc.) and how to design a viable and reliable structure that would be able to withstand high-level dynamic loading. Particular attention will be given to portable devices and systems designed for operation in harsh environments (such as automotive, aerospace, military, etc.) In-depth discussion from a mechanical engineer's viewpoint will be conducted to the key components' level as well as the whole device level. Both theoretical (analytical and computer-aided) and experimental methods of analysis will be addressed. The authors will identify how the failure control parameters (e.g. displacement, strain and stress) of the vulnerable components may be affected by the external vibration or shock loading, as well as by the internal parameters of the infrastructure of the device. Guidelines for material selection, effective protection and test methods will be developed for engineering practice"-- |
"The proposed book will offer comprehensive and versatile methodologies and recommendations on how to determine dynamic characteristics of typical micro- and opto-electronic structural elements (printed circuit boards, solder joints, heavy devices, etc.) and how to design a viable and reliable structure that would be able to withstand high-level dynamic loading"-- |
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