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Strategic Electronics Research & Design Centre (SLRDC)
SLRDC is one of the premier   avionics   R&D   centers established in Hyderabad  in 1972, having more than 40 years of expertise in Design and   Development, Qualification, Engineering support and Field Support of Communication, Radar, Mission Computers, Navigation and Identification Systems.

Over 40 types of Avionics Systems have been indigenously developed and successfully produced till now.

SLRDC has obtained AS 9100C certification for Design & Development
Core R &D and Support Groups
Core R &D and Support Groups

                           

Main Products of SLRDC
Main Products of SLRDC
.
Core Areas of Strength
  • System Design
  • Mechanical Design
  • Power Amplifiers
  • Front End Receiver, IF Receiver
  • Embedded and Processor Systems
  • System simulation
  • Software Development
  • Signal Processing and Data Processing
  • System Test Rigs
  • Automatic Test Equipment
  • Platform integration and testing
  • Data Analysis
Engineering Group
  • Design liaison support
  • Indigenization
  • Documentation generation and control
  • Standards reference Library
Engineering support for TOT Projects (like MMRCA )
SLRDC Team interacts with foreign vendors during transfer of technology to absorb technology   in manufacturing, testing and acceptance.  Transfer  vendor  inputs  to  production  standard  and release manufacturing, assembly & testing drawings. Latter provide production support, Repair & Overhaul, configuration & obsolescence management as per customer requirement for long period  ( More than
20+ year)
Indigenisation
Component / subsystems of the product are screened for
  • High value
  • Single vendor / proprietary
  • Long lead time items
  • TOT project components
Sub-system components developed to replace obsolete component /
subsystems of product.

  • Development by using in house capability / outsourcing.
Obsolescence Management
  • Steering Group formed in Engineering wing of SLRDC.
  • Obsolescence Status of components intimated by IMM / Designers.
  • Obsolete Systems indicated by aircraft / user .
  • Alternate sources, replacement with equivalent    & stockpiling
  • recommendation finalized in coordination with core design team.
  • Minor design change activity done by engineering.
  • Module replacement / alternate design of subsystems by core project group
  • / outsourcing.
Design Quality Assurance
Design Quality Assurance Group
  • Ensures Quality process & practices during product design & development.
  • Carry out Independent validation & verification of software as per standards
  • (Eg IEEE 12207, DOD 2167A, DO 178B)
  • Carry out hardware design assurance for complex electronic products (FPGA, CPLD).
  • Carry out Configuration management & Control of hardware & software.
  • Carry out Reliability prediction (MTBF, MTTR etc..) & Failure Mode Effect Analysis
R&D LABS
R&D LABS
.
R&D facilities
R&D facilities
.
Microwave Test Station
Microwave Test Station
  • Measuring Phase noise (SSB), Peak power output, Pulse droop, Duty cycle, pulse width for high power RF pulsed signal
  • Measurements of S-parameters for RF source
  • Effect of Pulse characteristics of RF transmitter and Receiver
RF Test Station
RF Test Station
  • The setup shown is used to test the Receive and Transmit parameters of an Airborne Transceiver which is fitted and flying on SU-30 MKI.
Environmental / EMI-EMC Facility
Environmental / EMI-EMC Facility
  • Cold/Hot/Humidity/Altitude Checks.
  • Vibration Test Facility.
  • EMI/EMC Test Facility.
  • Halt & Hass Facility
  • Conformity to MIL Standards.
Prototype Manufacturing Shop
  • CNC Machines with Cam Works
  • CNC Engraving Machine
  • Sheet Metal & Fitting Shop
  • Finishing Shop
  • Powder Coating Facility

Communication Systems


Sl No. Product Function Features & technology
1. UHF Stand by Radio – COM 1150A To provide radio communication in UHF band with
AM.
Modular construction ,Hybridized Modules, Analog processing of
Modulation & Demodulation
2. Analog Audio Management System
- AMU Series
To provide Intercommunication between Pilot/Co- Pilot/Ground Crew Interfacing with Transceivers, Receivers and Warning Receivers. Analog Processing of audio and mike signals
3. Digital Audio Control System - DACS series To provide telephone quality speech in Airborne environment Digital Processing for improved quality of speech with noise reduction techniques using latest DSP, FPGAs and compact hardware
4. V/UHF Jam Resistant Radio – INCOM Series To provide radio communication in VHF, UHF bands with AM,FM & ECCM ECCM (FH/ DS), Secure (Digital crypto), Data (8kbps); modulation &
demodulation using DSP, MIL STD1553 Bus, ARINC429 Interfaces
5. Advanced Communication System
– ACS 235
To provide radio communication in VHF, UHF bands with AM, FM & ECCM ECCM (FH /DS); Secure (Digital crypto); Data (8kbps); Modulation &
demodulation using DSP; MIL STD1553 Bus Interface.
6. Software Defined Radio – SDR
2010
To provide Airborne Communication & Networking with reconfigurable waveforms Fully Software Configurable with Open Hardware Architecture and SCA 2.2.2 compliant. Multi-channel operation with VHF, UHF, L-band and UHF SATCOM channels. Capable of handling multiple
waveforms.

Navigation Systems


Sl No. Product Function Features & technology
1. Automatic Direction Finder– ARC6
10
To guide and ground beacon direction finding Analog processing with IC technology
2. Distance Measuring Equipment – DME 2950A Provides the crew, slant range distance information from three selected navigational sensors / ground stations High Speed 32 Bit DSP for distance acquisition & system operation. Built in test facility. RTCA DO 189 compatible. ARINC Bus . Solid state transmitter.
3. VOR / ILS / Marker & variants– VOR/ILS 2801A To provide navigation for enrouting , landing and approach. Processing of signal for bearing angle, DDM using DSP; MIL STD1553
Bus , ARINC429 interfaces.
4. Tactical Air Navigation - TACAN
2901A
Measurement of vertical height with respect to terrain. Use of solid state power amplifiers and analog signal processing

Identification


Sl No. Product Function Features & technology
1. Identification of Friend or Foe (IFF) Transponder - IFF Mk X, XI & XII Series Identification of targets for as Friend or Foe in Mk X, XI & XII modes Solid state Amplifiers for Transmitter, Use of microcontrollers. Dual Channel Digital receiver for diversity operation for spherical coverage. High-Speed 32-bit DSP processor for acquisition of interrogation pulse information & system operation. TCAS compatibility for Collision Avoidance.
2. Identification of Friend or Foe (IFF)
interrogator – IFF Mk XII
This system interrogates the target and based on the reply declares it as a Friend / Foe. Mono Pulse receiver for Interrogator . High-Speed 32-bit DSP processor for acquisition of interrogation pulse information & system operation
3. Combined Interrogator & Transponder – CIT Mk XII Combined Interrogator & Transponder unit catering to
Mk XII mode as per STANAG 4193 and ICAO Annexure-
10. Functional Modes for the Interrogator include
Challenge, Continuous and Tracking mode.
Interrogation/Response Identification system for MKX, Mode S Level
2 & IS1 (Secure Mode) .Mono Pulse receiver for Interrogator and Dual Channel Digital receiver for diversity operation for spherical coverage for transponder. High-Speed 32-bit DSP processor for acquisition of interrogation pulse information & system operation. TCAS compatibility for Collision Avoidance. Mechanical steerable antenna interface for Interrogator

Utility Management Systems


Sl No. Product Function Features & technology
1. Brake Hydraulic Engine Electrical
Monitoring System – BHEEM
1506A
Brake Management control and Engine Electrical
Monitoring system for LCA
Power PC with RTOS and handling of 300 signals ( Analog / Digital)
2. Starter Electronic Control Unit - SECU Starter Engine Control Unit for Jet Fuel starter of LCA Micro controller (87C51) based system
3. Digital Engine Control Unit for
PTAE – DECU
Digital Engine Control Unit for PTAE ( Lakshya) Micro controller (87C51) based system
4. Air Data Unit - ADU Computation of Air data parameters like Mach
Number and Calibrated Air Speed and Altitude for ALH
ARM 7 ( 32 bit Microcontroller) based system with ARINC 429
Interface

Missile Electronics


Sl No.  Product  Function  Features & technology 
1.On board Processor for Akash - OBP Processing of various control signals for controlling the misssile flight 80486 based system with dedicated special purpose serial interface
2.Radio Proximity Fuse (RPF) for Akash , Astra , Advanced Air Defence Estimation of optimum range for maximum damage to target Solid State power amplifier in Ku band
Digital signal processing using ADSP processor / FPGA
3.Servo Controller Unit for LSRAM The servo controller will control 4 electro-mechanical actuators independently in closed loop DSP Module, PWM & communication circuitry, Hex Bridge, Signal conditioning circuitry & Power supply module

Radar Systems


Sl No. Product Function Features & technology
1. Radio Altimeters – RAM 700 Series Measurement of vertical height with respect to terrain. Use of solid state power amplifiers and analog signal processing
2.Radio Altimeters - RAM 1700 Series, RAM 2700 Series Measurement of vertical height with respect to terrain. Use of solid state power amplifiers and digital signal processing

Computers


Sl No. Product Function Features & technology
1. Air Data Computer – ADC 2601 Computation of Air data parameters like Mach
Number and Calibrated Air Speed and Altitude for IJT
ARM 7 ( 32 bit Microcontroller) based system with ARINC 429 /
1553B and RS 422 Interfaces
2.Automatic Flight Control computer - AFCC Automatic Flight control computer is a modular construct and is interfaced to various sensors, cockpit controls and actuators. The commands computed
from both channels is used to drive pitch, roll, yaw and collective axis in series & trim actuators
Power PC 7448A based system with Vx Works RTOS system. RTOS-Vx
Works 6.5, H/W is RTCA/DO 254 compliant
State of art SMDs, hybrids and BGA packages
Usage of Lightning Protection as per RTCA/DO 160D

Other Products


Sl No. Product Function Features & technology
1.Central Warning Systems - CWS The function of this system is to generate visual ,
audio tone & voice warnings in case of malfunction or failure of various avionics systems of HJT 36 Aircraft
30 legends to display red & amber warnings
Generates audio tones for red & amber warnings
Generates voice warnings for AOA Exceedance , Low altitude,
Canopy unlock & Under carriage extension. Day-Night operation
Capable to receive ARINC/Discrete signals from FADEC Complies to MIL-STD-810D & MIL-STD-461C
2.Weapon Control Panel – WCP integrally lit switch panel used for the Pylon Switches, Weapon Type selection, LIVE/SAFE for Bomb and Ripple/Salvo for Rockets by Pilot on HJT36 A/C Day and Night Operational. Sun light readable .NVG compatible Legends. Compact in size .Low in Weight .Integrally lit by LEDs .LED Legends .Low Power consumption
3.DRFM based target simulator Evaluates the performance of RPF in real scenario, by Simulating the Target with various ranges and velocities High Speed ADC for digitization, High Speed FPGA.
4.Power Control Unit (PCU) for PTAE supplies regulated 28V DC voltage to the electronics subsystem of the PTA Lakshya aircraft Switch mode power supply technology
5.Armament Configuration Panel – ACP10O0 Forwards the information of the weapon type loaded on the pylon to different elements of the weapon control system. ACP interfaces with Mission Computer of Integrated Avionics System to provide the information of type of store installed on the pylon to generate the symbology on HUD. Compact in size. Low in Weight .Easy to install. Simple in design
6. Floating Deck high Voltage unit - FDHV It provides the necessary Heater Voltage and Grid
Pulse Voltage to the TWT.
High Voltage module for TWT grid modulator

CAD Services

  • MSC / NASTRAN Finite Element Analysis Systems on SUN Workstation and COSMOS / MFEA Software on PCs
  • Solid Modeling Software
  • PCB Design Software VISULA on HP Workstation

Workshop

Computerised precision machining and fabrication facilities provide prototype production support to our R & D efforts.

Environmental Laboratory

  • Cold / Hot / Humidity / Altitude Checks
  • Vibration Test Facility
  • EMI / EMC Test Facility
  • Conformity to MIL Standards

Quality Assurance

At the Strategic Electronics Research & Development Centre, meticulous quality care is ensured at every stage of research and development through :
  •  ISO 9001 Quality System
  • Use of Design Automation Tools
  • Preferred Parts Lists
  • Burn-in Tests
  • MIL standards for Maintainability, Reliability and Workmanship
General Manager-Strategic Electronics Research & Design Centre (SLRDC)

Hindustan Aeronautics Limited- Balanagar
Hyderabad – 500 042
Telephone: 040-23878438
Fax: 040-23879570