A flexible and programmable Digital Radio Mondiale
The analog transmission using AM (Amplitude Modulation) and FM (Frequency Modulation) techniques is still commonly used due to its simplicity, inexpensiveness and reliability than the state of the art digital counterparts. The problems with AM/FM modulation are it consumes more bandwi
2025-06-28 16:30:05 - Adil Khan
A flexible and programmable Digital Radio Mondiale
Project Area of Specialization Internet of ThingsProject SummaryThe analog transmission using AM (Amplitude Modulation) and FM (Frequency Modulation) techniques is still commonly used due to its simplicity, inexpensiveness and reliability than the state of the art digital counterparts. The problems with AM/FM modulation are it consumes more bandwidth, quality of transmission is not good and transmission is not secure. Therefore a digital transmission system is required that uses existing protocols and gives advanced features. In this project, we presented a Software Defined Digital Radio Mondiale (SDDRM) broadcasting system that transfers the Information securely over a wide geographical area. The system uses configurable Radio Frequency (RF) front-end, High-Performance Computing (HPC) system and easy to use programming environment.
Project Objectives- A high-performance Digital Radio Mondiale for a wide range of applications.
- The system can be programmable using programming languages or data flow programming.
- Gives high performance for different applications at the real-time environment.
The DRM architecture depends upon seven systems, the Back-end System, the Configurable Radio Frequency System, the High-Performance Computing System, the Programming Environment Application and the User Front-end System.
The Back-end System uses multiple antennas to receive and broadcast the electromagnetic wave between the range of 20 KHz to 6 GHz. While transmission, the Configurable Radio Frequency System (CRFS) takes digital data from the High-Performance Computing System, converts into analog base-band signal and modulate it on at the programmed carrier frequency. At the time of receiving the CRFS takes RF signals, demodulate and used ADC to convert a signal into digital form. The HighPerformance Computing System (HPCS) is utilized for software signal processing. The SDDRM applies multi-core RISC processor for application processing. SDDRM Front-end System takes the data from the user using Mic or Keypad and transmits it for the communication to the processing system. The SDR Based DRM provides Software Development Environment (SDE) in order to formulate functions.
The SDDRM gives a complete solution for
- Programmable due to digitizing analog radio bands such as ShortWave/Medium-Wave/Frequency-Modulation (SW/MW/FM) and other VHF bands.
- Flexibility
- Separate band for a single channel
- Inefficiently utilizing band spectrum
- It can be used for both public and industrial transmissions for national, regional and international coverage.
- Save broadcasters up to 80% in energy and maintenance costs
The final deliverable product will be a flexible, programmable and secure device which would be able to perform multiple telecommunication tasks and applications due to programmable multi-core processors and software environment without changing the hardware.
Final Deliverable of the Project HW/SW integrated systemType of Industry IT , Media , Security , Telecommunication Technologies Internet of Things (IoT), OthersSustainable Development Goals Affordable and Clean Energy, Industry, Innovation and InfrastructureRequired Resources| Item Name | Type | No. of Units | Per Unit Cost (in Rs) | Total (in Rs) |
|---|---|---|---|---|
| Total in (Rs) | 71000 | |||
| Intel Single board computer | Equipment | 1 | 40000 | 40000 |
| SDR Receiver | Equipment | 1 | 30000 | 30000 |
| Paper Prints | Miscellaneous | 1 | 1000 | 1000 |