Indian Defense buys Tactical Software Defined Radio from Bharat Electronics | Defense News February 2021 Global Security army industry | Defense Security global news industry army year 2021

The Indian Ministry of Defense (MO) and Public Sector Defense Enterprise (DPSU) Bharat Electronics Limited (BEL) signed a contract to supply software-defined radio tactics (SDR-Tac) worth more than Rs 1,000 over New Delhi on February 8, 2021.
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SDR-Tac, jointly designed and developed by the Defense Electronics Laboratory (DEAL) of the Defense Research and Development Organization (DRDO) (Photo source: BEL)

SDR-Tac, jointly designed and developed by the Defense Electronics Laboratory (DEAL) of the Defense Research and Development Organization (DRDO) through a consortium of local agencies and industry consisting of the Weapons and Electronic Systems Engineering Organization (WESEE) ), BEL, the Center for Artificial Intelligence and Robotics (CAIR) and the Indian Navy will bring strategic depth to the armed forces. Delivery will take place within three years. BEL is already supplying SDR-Naval Combat (NC) and SDR-Air is in the process of being studied by consumers. DRDO and BEL plan to provide the latest security SDRs for the armed forces.

The SDR-Tac is a four-channel multi-mode, multi-band, 19-inch, trunk-mounted, ship-controlled software-defined radio system. It is designed to service ship-to-ship, ship-to-shore and ship-to-air voice and data communications for network operations. It supports simultaneous operation of all four channels, covering V / UHF and L band. This SDR system contains many types of waveforms for narrowband and broadband applications. MANET waveforms are available in UHF and L-Band to support adhoc network function for non-centric operations. Attempts to evaluate users, covering comprehensive port and sea phase tests, were successfully completed in May to June 2018 in Visakhapatnam for all waveforms, including V / UHF and L-band shapes of MANET in different network configurations.

Interoperability tests with all other form factors covering Airborne SDR-AR on board Dornier Aircraft, SDR-Tac on board INS Kirch in sailing mode, SDR-Manpack and SDR-Handheld were also successfully performed. All aspects were successfully evaluated by all Navy user agencies and procurement was granted.

The military needs to move from one-time radio in the past to more flexible software-defined radio stations (SDRs) to serve most of its wireless communication needs. These SDRs will be backwards compatible with existing Indian radio stations. Different service groups require different radio factor stations for specific platforms and forms / applications. SDRs allow the use of common waveform / application execution methods for different form factors. They also allow the execution of futuristic waveforms on the same hardware using software programmability, thus providing longer life and cost savings.

A key factor in SDR is that software programmability allows easy changes to basic radio characteristics, such as modulation types, operating frequencies, bandwidth, multiple access schemes, source and channel encoding / decoding methods, propagation / decryption techniques, and algorithms. for encryption / decryption. Traditional hardware-oriented radios require hardware changes to modify these basic features. Many types of radio equipment can be replaced by multi-mode, multi-band, multi-function SDRs with appropriate form factors.