SOFTWARE DEFINED RADIO.Definition,hardware,software and applications
- 1. Software Defined Radio Jawaharlal Nehru Technological University Hyderabad College of Engineering Rajanna Sircilla DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING PRESENTED BY: BODA MADHU
- 2. CONTENTS Introduction History of Software Defined Radio Understanding SDR Principles Key Components of an SDR System SDR Software options SDR Hardware Comparison to Traditional Radio Some benefits of SDRs include Software Defined Radio Applications Regulatory Considerations for SDR The Future of Software Defined Radio
- 3. Software Defined Radio Software defined radio (SDR) is a revolutionary technology transforming wireless communication. Unlike traditional radios, SDR uses software to define and control radio frequency (RF) functions.
- 4. •Concept development •The concept of SDR was developed in the 1970s and 1980s by research groups in the United States, including the US Department of Defense Laboratory and E-Systems Inc. •First SDR •The first SDR was developed by Ulrich L. Rohde's department at RCA using the COSMAC (Complementary Symmetry Monolithic Array Computer) chip •Term reinvention •In 1991, Joe Mitola independently reinvented the term "Software Radio" (SR) History of Software Defined Radio
- 5. Understanding SDR Principles Flexibility SDR allows users to adapt to different communication standards, modulation schemes, and frequency bands through software updates. Reconfigurability SDR systems can be reconfigured to support new applications and emerging technologies without requiring hardware modifications.
- 6. Key Components of an SDR System Antenna Transmits and receives RF signals. Transceiver Converts RF signals to digital data and vice versa. Processor Handles signal processing, modulation, and demodulation. Computer Provides the software environment for SDR operation.
- 7. SDR Software options: HackRF One: An open-source SDR that's popular with amateur radio enthusiasts, hackers, and RF security practitioners. ADALM-PLUTO: An easy-to-use SDR active learning module. LimeSDR: A low-cost, open-source SDR platform that's apps-enabled. RTL-SDR: An inexpensive SDR based on DVB-T TV tuners with RTL2832U chips.
- 8. Hardware: The 10th generation CPUs from Intel offer amazing performance, you really don't need more than an i5. Enhance performance with NVIDIA CUDA or OpenCL (below). This Photo by Unknown Author is licensed under CC BY
- 9. Comparison to Traditional Radio 1 Hardware vs. Software Traditional radios are fixed- function devices with dedicated hardware components. SDR relies on software to perform all radio functions. 2 Flexibility Traditional radios are limited to a specific frequency band and modulation scheme. SDR is highly flexible, allowing for adaptation to changing requirements. 3 Cost Traditional radios often have high upfront costs. SDR solutions can offer lower costs due to reduced hardware requirements.
- 10. Advantages and Limitations of SDR 1 Flexibility and Reconfigurability Adaptability to new technologies and standards. 2 Cost-Effectiveness Lower hardware costs compared to traditional radios. 3 Performance Potentially higher performance and bandwidth. 4 Complexity Sophisticated software and signal processing requirements. 5 Limited Real-Time Performance Software limitations can impact real-time performance.
- 11. Some benefits of SDRs include: •Multi-user, multi-mission •Less maintenance •Seamless integration with third-party technologies •24/7 remote operability •Simple technology updates
- 12. Software Defined Radio Applications Wireless Communications SDR is used in cellular networks, Wi-Fi, and satellite communication systems. Radio Astronomy SDR is used in telescopes to receive and analyze radio waves from celestial objects. Security and Surveillance SDR can be used for spectrum monitoring and signal interception in security and surveillance applications. Medical Imaging SDR is employed in medical imaging devices like MRI and ultrasound machines.
- 13. Regulatory Considerations for SDR 1 Spectrum Allocation SDR must operate within allocated frequency bands. 2 Interference Mitigation Measures must be taken to prevent interference with other wireless systems. 3 Security and Privacy SDR systems must adhere to security and privacy regulations. 4 International Standards Compliance with international standards is crucial for global interoperability.
- 14. The Future of Software Defined Radio 5G 5G and Beyond SDR is essential for enabling next- generation wireless communication technologies. IoT Internet of Things (IoT) SDR will play a vital role in connecting billions of IoT devices. AI Artificial Intelligence (AI) AI-powered SDR systems will optimize communication efficiency and performance. Spectrum Sharing Dynamic Spectrum Sharing SDR will facilitate the efficient use of spectrum resources.