June 22-23, 2021 | Online :: Central Time href="https://www.lrainstitute.com/event_post/0221-space-communications/" class="post-thumbnail">
Geosynchronous Earth Orbit (GEO) satellites and the fast-growing Medium Earth Orbit (MEO) and Low Earth Orbit (LEO) satellites constellations are competing in the high-volume terrestrial communications market. Typically satellite communication systems are more competitive in rural area, underserved communities, and broadcast television, but the development of High Through Put (HTP) satellite technologies are having the effect of leveling the playing field compared with cable and terrestrial wireless systems.
This course provides an overview of the current satellite technology. It explains the advantages and disadvantages of satellites in the three orbital categories (GEO, MEO and LEO), the reasons why satellites have expanded operation into higher frequencies, the practical limitations of higher frequency operation and discusses some of the cutting-edge methods deployed by the satellite industry to maximize data through-put and signal availability. In addition, the course shows how the limited resource of wireless frequency spectrum is reused to multiple the satellites output. These techniques are applicable to ground base systems as well as airborne and navel applications. Some current and near future satellite systems that optimize coverage and data rates will be discussed.
- Review the fundamentals of satellite communications
- Issues concerning satellite orbital heights
- Orbital characteristics
- Satellite footprints
- Frequency reuse through polarization
- Discuss role of hybrid adaptive networks on traditional inter-sat communication
- Discuss the signal path between Earth and the satellite
- Communications link objectives
- Antenna fundamentals
- Atmospheric effects
- Identify issues concerning the satellite digital Ddata link
- Signal linearity
- Vector modulation
- Comparing common signal modulation techniques
- Discuss the effects of signal distortions & noise
- Signal distortion and noise accumulation through the satellite link
- Controlling adjacent channel interference
- Assess High Throughput Satellites (HTS) compete with terrestrial WiFi
- Using higher frequencies and wider bandwidths
- Adverse weather mitigation techniques
- Forward Error Correcting codes (FEC)
- Understanding Adaptive Modulation (AM), FEC codes & Bit Rates
- Compare satellite configurations
- Low Earth Orbit (LEO), Medium Earth Orbit (MEO) and Geostationary Orbit (GEO) Satellites
- Elliptical orbits
- Analyze the specifications of major satellite communication subsystems
- Earth stations & space segment
- Power amplifiers
LRA has been accredited as an Authorized Provider by the International Association for Continuing Education and Training (IACET). In obtaining this accreditation, LRA has demonstrated that it complies with the ANSI/IACET Standard which is recognized internationally as a standard of good practice. As a result of their Authorized Provider status, EUCI is authorized to offer IACET CEUs for its programs that qualify under the ANSI/IACET Standard.
LRA is authorized by IACET to offer 1.0 CEUs for this event.
Requirements for Successful Completion of Program
Participants must log in each day, be in attendance for the entirety of the course
Power Point presentations and open discussion will be used
Who Should Attend?
Engineers, Engineering Managers and Corporate Managers involved in or are interested in learning about satellite communications and related communication systems.
Tuesday, June 22, 2021 : Central Time
8:45 – 9:00 a.m. :: Log In
9:00 a.m. – 4:00 p.m. :: Course Timing
12:00 – 12:30 p.m. :: Break for Lunch
Part 1: Fundamentals of Satellite Communications
- Satellite Basics and Relevance in a WiFi World
- Satellite Orbits and Orbital Mechanics
- Orbital Characteristics and Applications
- Antenna Beams and Terrestrial Footprints
- Frequency Reuse through Polarization
- Satellite Transmission Path Issues
Part 2: Signal Transmission and Reception
- Communications Link Objectives
- Antenna Fundamentals
- Signal Transmission – EIRP
- Path Loss and Atmospheric Effects
- Thermal Noise
- Signal Reception – G/T
- Satellite Link Example
- Satellite Tracking
- Uplink Power Controller (UPC)
Part 3: Signal Modulation Techniques and Trade-offs
- Vector Modulation
- Constant Amplitude Modulation
- Quadrature Amplitude Modulation (QAM)
- Amplitude Phase Shift Keying (APSK)
Part 4: Signal Distortions & Errors
- Signal Errors
- Group Delay Distortion
- Amplitude Distortion
- Signal Linearity
- Effects of Oscillator Stability (Phase Noise)
- Combined Signal Distortions
- Adjacent Channel Interference
- Time Domain Effects – Eye Diagrams
Part 5: High Throughput Satellites (HTS) and Operation in Ka Band
- High Throughput Satellites (HTS)
- Mitigate Ka Band Atmospheric Issues
Wednesday, June 23, 2021 : Central Time
8:45 – 9:00 a.m. :: Log In
9:00 a.m. – 12:00 p.m. :: Course Timing
Part 5: High Throughput Satellites (HTS) and Operation in Ka Band (Continued)
- Adverse Weather Mitigation Techniques
- Forward Error Correcting Codes
- Adaptive Modulation (AM), Bit Rates & Site Diversity
Part 6: Comparing Satellite Configurations
- Low Earth Orbit (LEO)
- Medium Earth Orbit (MEO)
- Geostationary (GEO) Satellites
- Future Frequency Spectrum (Q, V and W Bands)
Part 7: Analyzing the Specifications of Major Satellite Communication Subsystems
- Major Satellite Earth Station Subsystems
- Reliability as a Function of Temperature
- Comparison of Power Amplifier Technologies Used in a Space Environment
- The Space Environment
- Power Amplification in Space
- Traveling Wave Tube Amplifiers (TWTA)
- Microwave Power Modules (MPM)
- Solid State Power Amplifiers (SSPA)
- Comparing Power Amplifier Technologies
Howard Hausman, President & CEO, RF Microwave Consulting Services
Howard Hausman received his BSEE and MSEE degrees from Polytechnic University / Tandon School of Engineering, New York University and is President/CEO of RF Microwave Consulting Services. Mr. Hausman is also an Adjunct Professor at Hofstra University, School of Engineering. Formerly Mr. Hausman was President/CEO of MITEQ, Inc., a microwave engineering company with approximately 700 employees. The company designed products for ground-based satellite communications, space borne microwave, Radar, Reconnaissance, and commercial aircraft WiFi systems, as well as various microwave products for defense electronics. Following the acquisition of MITEQ, Mr. Hausman consulted to the merged L3-narda-MITEQ division for approximately two years. Howard also started and sold after 15 years a successful microwave systems and components company.
During his career, Howard Hausman served as Chief Technology Officer and Vice President of Engineering, before being appointed President/CEO of MITEQ, Inc. Howard Hausman is also a recipient of the New York University / Polytech Distinguished Alumni Award, the IEEE LI Section Alex Gruenwald Award “For outstanding contributions to enhance the knowledge of the IEEE LI Section members in Satellite Communications and Microwave Theory” and an Award from NASA for work on the Mars Landing Systems. Mr. Hausman is currently the Chairman of the IEEE LI Section Communications Society (COMSOC) and was selected to review papers for the IEEE MIT Undergraduate Research Technology Conference.
We will be using Microsoft Teams to facilitate your participation in the upcoming event. You do not need to have an existing Teams account in order to participate in the broadcast – the course will play in your browser and you will have the option of using a microphone to speak with the room and ask questions, or type any questions in via the chat window and our on-site representative will relay your question to the instructor.
- You will receive a meeting invitation will include a link to join the meeting.
- Separate meeting invitations will be sent for the morning and afternoon sessions of the course.
- You will need to join the appropriate meeting at the appropriate time.
- If you are using a microphone, please ensure that it is muted until such time as you need to ask a question.
- The remote meeting connection will be open approximately 30 minutes before the start of the course. We encourage you to connect as early as possible in case you experience any unforeseen problems.