Telemetry Systems
Engineering
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Telemetry Systems
Course No. 171
(Course Outline shown below.)
For Whom Intended This course is intended for personnel involved in engineering applications of telemetry, in either commercial or defense/space organizations. Applications include telemetry as applied to control and monitoring of space vehicles as well as telecommunications, automotive testing, in-plant industrial system control and electrical power transmission telemetry systems.
Brief Course Description The course starts with an introduction to telemetry systems, carrier signal modulation and telemetry standards.
The presentation continues with background information on topics encountered in telemetry systems such as: dB, sensors, filtering, signal waveforms and Fourier analysis.
Telemetry modulation techniques, frequency modulation (FM) and Pulse-Amplitude modulation (PAM) are covered next. After a discussion of digital signals, binary arithmetic and data formats, Analog/ Digital and Digital/Analog conversion is covered. Building on this knowledge, the instructor then presents Pulse-Code modulation (PCM), including commutation techniques.
Next comes a discussion of Data Bus standards such as ARINC-429, MIL-STD-1553 and IRIG-106, followed by a section on bit encoding, including Viterbi, Reed-Solomon and convolution.
Special PCM formatting such as embedded asynchronous and embedded video techniques are discussed before covering time codes. The instructor then discusses Range Telecommunications issues such as multi-sourced data and architecture.
Next comes an overview of available computer systems, interfaces, networking options and parameter databases. System processing, testing, and specifying are considered next, followed by data compression and storage, including analog and digital tape recording and multiplexers. The course concludes with discussions of RF transmission theory, mission planning and data mining, an overview of telemetry vendors and a brief discussion of future trends, including iNet.
Certificate Programs This course is an elective for TTi's Instrumentation Test Specialist Certificate Programs and may be used as an elective for any other TTi Certificate Program.
Prerequisites There are no definite prerequisites, but TTi's courses Instrumentation for Electrical Test and Measurement and Digital Signal Processing would be helpful.
Text Each student will receive a course workbook, including most of the viewgraphs used in the course presentation, also a CD-ROM with copies of the various standards discussed in the class.
Course Hours, Certificate and CEUs Open courses meet seven hours per day. Upcoming presentation dates can be found on our current open course schedule. Class hours/days for on-site courses can vary from 14-35 hours over 2-5 days as requested by our clients. Upon successful course completion, each participant receives a certificate of completion and one Continuing Education Unit (CEU) for every ten class hours.
Course Outline No. 171
- Introduction to Telemetry Systems
- Types of telemetry systems
- Basic radio telemetry system
- Radio Frequency (RF) Link
- Components of telemetry system
- Antennas
- Near-Earth and Deep Space Applications
- Telemetry standards
- Understanding dB
- Decibels
- Power Ratio
- Voltage Ratio
- dB Conversions
- Sensors
- The Ideal Transducer
- Mechanisms and Measurands
- Strain Gages
- Accelerometers
- Linear Variable Differential Transducer (LVDT)
- Pressure Sensors
- Potentiometric Transducers
- Temperature Sensors
- Thermomechanical Effects
- Ultrasonic, Microwave, etc.
- 4-20 mA Loop
- System Operating Range
- Linearity and Non-linearity
- Hysteresis
- Environmental Effects
- Case Strain or Base Strain Effect
- Mounting Effects
- Filtering
- Analog vs. Digital filtering
- Square Wave Frequency Domain
- Bandpass filters
- 60 and 400 Hz problems
- Filter characteristics
- Signal Waveforms and Fourier Analysis
- Square Wave
- Pulse shape of a Square Wave
- Complex Waveform
- Addition of Sine Waves
- Time and Frequency Domain
- Signal Sampling
- Shannon/Nyquist Theorem
- Shannon's Theorem
- Critical signal component
- Aliasing: examples, demonstration
- Telemetry Techniques: Frequency Modulation (FM) and Pulse Amplitude Modulation (PAM)
- Carrier Modulation
- Amplitude and Frequency Modulation (AM and FM)
- FM:
- Ground Station
- Demultiplexing Stages 1 and 2
- Frequencies
- Techniques
- Modulation Index Spectra
- Guard Bands
- FM Channel Mixing
- Signal Sampling
- Pulse Amplitude Modulation (PAM)
PAM Ground Station - Miscellaneous Encoding
- Digital Signals, Binary Arithmetic and Analog/Digital Conversion
- Numbering Systems
- Signed Magnitude
- 2s Compliment
- Comparisons
- Summing numbers
- Data formats
- Fixed Point
- Floating Point
- Parity Math
- Gray Code
- Binary Coded Decimal (BCD)
- Endians
- Analog-to-Digital and Digital-to-Analog Conversion
- Output Waveform of DAC
- Numbering Systems
- Telemetry Techniques: Pulse Code Modulation (PCM)
- PCM Encoder
- Airborne Instrumentation
- CAIS Sources
- PCM Ground Station
- Bit Sync
- Decommutator, Example
- Optimal Frame Sync Pattern
- Sample Rates vs. Bit Rates
- Sub-Commutation
- Frame Encoding
- Formats
- Super-Commutation
- Super-Sub-Commutation
- Sub-Sub Commutation
- Discrete Inputs
- Sample Plans, Exercise
- Parity Bits
- Receiving System Setup Issues
- Receiver Settings
- Bit Sync Settings
- Decom Settings
- Module I/O
- Digital-Analog Output Module I/O
- Data Bus
- ARINC-429
- MIL-STD-1553
- IRIG-106, Chapter 8 (1553 and 429)
- Recent Updates
- MIL-STD-1553 Future
- Other Buses
- Bit Encoding
- Digital Data Formats
- Common Codes
- Bit Syncs
- Noise in the Data Stream
- Viterbi and Reed-Solomon Encoding
- Convolution Encoding Examples
- 1/3 Rate
- 1/2 Rate
- Reed Solomon
- Interleaving
- Special PCM Formatting
- Embedded Asynchronous
- Embedded Video
- Variable Word Length
- Fragmented Words
- Format Changes
- Independent Subframes
- Tagged Data Format
- Burst Mode
- Data Class 1 & 2
- Sample/Hold
- Encryption
- PCM/FM
- Time Codes
- System Timing Information
- Internal vs. External Time
- Typical Time Codes
- Resolution
- IRIG-B
- Reading Serial Code
- Time Code Nomenclature
- Embedded Microseconds
- Is Accuracy Important?
- Desktop time
- Range Telecommunications
- Multi-Sourced Data
- Architecture
- Carrier Types, Strengths and Weaknesses
- IP Data Transfer
- Merging File (Data) Sets
- Best Source Selectors
- The Computer and the Telemetry System
- Data Words
- Data Transfer Mechanisms
- PC Computers
- Getting Data to Disk
- Buffer Servicing—CVT vs. Data Driven
- Bus Standards
- PC Systems
- PC Software
- Environment—Portability and Ruggedness
- Buses
- ISA, PCMCIA (PC Card)
- PCI, VME
- USB, FireWire (IEEE 1394)
- SCSI (Internal), Fibre Channel
- ATA and Serial ATA
- RAID and Networked Storage
- Networking Growth
- Ethernet: Rates, Components, Physical Medium
- Fiber Connectors
- Software Protocols
- UDP vs. TCP
- Data Flow Down
- Display Devices
- Graphics Display Engines: Tabular, Bar Charts, Strip Charts, Alarm Pages, Quick Look
- IADS
- ILIAD
- LabView
- MatLab
- Global Majic
- Quinn Curtis
- DataViews
- Parameter Databases
- Telemetry Attribute Transfer Standards (TMATS)
- "Hard" Programming (Patch Panels)
- Strip charts
- System Processing, Testing, and Specifying
- Needs for a Processing Engine
- IRIG Time Testing for Processing Engine
- Data Driven vs CVT Testing
- System Specifications
- Exercise: System Testing
- Data Compression and Storage
- ZFN
- Data Storage
- Analog Recorders: Ground, Airborne
- Digital Recorder Technology: Tape, Disk, Solid-State
- Digital Solid State Disk Drives
- Data Recorder Technology Comparisons
- Digital Recording: Rates, Video, Ethernet, CVSD, Multiplexers
- IRIG chapter 10
- Recording Media and Duration
- Watch What You Record !!
- IRIG Time Testing for Recorders
- RF Transmission
- UHF Bands
- Digital Signal Transmission
- Popular Modulation Types
- Antennas
- Bit Error Rate (BER)
- System BER Testing
- Future Visions…JTRS
- Mission Planning and Data Mining
- Mission Planning
- Work Breakdown Structure
- Mission Support Process
- The Next Challenge (Data Mining)
- Data Mining Tool Requirements
- Three Solutions
- Telemetry Vendors
- The Future
- Project: iNET
- Overview
- Details
- Dropouts
- iNET Steps
- Main Menu
- Future
- Web Sites to Monitor
- Summary
- Final Quiz
- Award of Certificates for Successful Completion
For schedules, enrollment information and more, visit http://www.ttiedu.com.
