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R & D Projects

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ICS executed a number of turnkey projects in data communication software development, embedded systems design and application software development for major public sector undertaking and private sector organizations. A brief summary of some of the major projects is given below.

aAnalysis and Recording Module (ARM)

The Analysis and recording module (ARM) is intended to perform Analysis and Recording of intelligence carried by communication signals provided at the IF and audio levels from two independent Receiver channels. Realized as ATR mountable functional modules, ARM is provided with two sets of inputs, either of which can be selected for monitoring or Analysis by a Digital Signal Analyzer and Decoder, the decoded or demodulated outputs are recorded in digital format by digital recorder. This subsystem needs to be realized in VME 64 based Modules suitable for packaging in a ¾ ATR modules.

ARM can be operated from a server through ethernet LAN using a Command-Response protocol over the TCP/IP. ARM is capable of performing the Coarse analysis, Modulation Classification, Parametere extraction, digital demodulation, code recognition, decoding, recording and replay of input signals.

Client - DLRL-Defence Lab Brochure

aTechnique Counter Modulation Generation System

The Technique Counter Modulation Generator(TCMG), is meant for generating modulated signals with assorted types of modulations and modulating signals in the frequency range of 1.5 MHz to 30 MHz with a resolution of 1 Hz by taking commands from an external controller unit. The system is developed using state of the art technologies like Direct Digital Synthesizer, Programmable Digital Attenuators, Phase locked Oscillators, high stability OCXOs and Digital Signal Processors. The system has the capability of working as a standalone system when the local mode is selected. The high stability reference oscillator output of the system can be used as external reference input to the other systems. The system features very high stability, resolution and response time.

Client - DLRL-Defence Lab

aBaseband Identification And Detection System

The “Baseband identification & Detection System (BIDS)” consists of Signal Processing Hardware housed in an industrial – Grade 19” rack mountable PC. The application software on the PC provides the necessary GUI for signal analysis / display of the identified parameters. The IF Signal (455 KHz) is down – converted and analyzed in the digital domain & the demodulation is carried out. The voice signal will be made available at audio port. Digital data will be made available at a data port and also will be stored in a file for storage and off line processing.

Client - DLRL-Defence Lab

aDigital Audio Recording System

The four channel digital audio recorder is based on the audio interface card technology developed by ICS indigenously. It converts the analog audio signals into PCM Coded 64 Kbps digital data and stores it in to either a Hard Disk or a Compact Disk depending on the requirement. Each channel of the recorder is independent of the other channels and uses its own interface card. Hence either it can be down scaled to one channel or extended up to 8 channels. Since all the channels are independent of each other, simultaneous recording and replay is possible. Any of the channels can be used for recording or replay. The recorder accepts input from Tape/Microphone.

Client - DLRL-Defence Lab Brochure

aSimulator for Base Band Identification system

The BIDS Simulator is a PC based system, with a PC add-on card to provide the required functionality for generating the necessary output signals for the data. The system takes the input from the keyboard. This input is in the form of data entered in a Graphical User Interface (GUI) screens for various parameters. The output will be on a monitor to display the data or through a serial interface for the data signals.

Client - DLRL-Defence Lab

aVoice Band Data Signal Analyser

The DSP based Data acquisition add-on card is built around dual Tiger SHARC Analog Devices DSPs with 128 MB SDRAM and additional circuitry for input signal interface. The two-channel voice frequency signal is selectable by a switch, controlled by DSP. An audio interface circuit is provided to route the voice frequency signal to headphone for operator listening. The voice frequency signal is also given to A/D converter, which will convert the analog data to its digital equivalent. The digital data is processed by the DSP to carry out the spectral, temporal and statistical analysis; classification of voice, noise, silence or data; identification of voice band data signal modulations and feature extraction. The board also consists of an FPGA to interface the DSP to the rest of the circuitry and communicate with the PCI controller. The card is capable of recording the input voice band signal clip of 60 seconds in a RAM buffer, which is to be analyzed by a separately designed DSP based demodulator card.

Client - DLRL-Defence LabBrochure

a Base Band Processor module

The Base Band Processor Module (BPM) generates modulated IF signals and demodulates the received IF signals. Themodulated signal can be digitized voice (PCM or VOCODER) or data (Asynchronous or Synchronous). Through this module we can process both NB(Narrow Band) & WB(Wide Band) Signals.The IF is 455 KHz. The types of modulation and demodulation to be supported are:

  • AM (Amplitude Modulation)
  • FM (Frequency Modulation)
  • CPFSK (Continuous phase frequency shift keying)
  • Π/4 DQPSK (Π/4 Shifted, Differentially Encoded Quadrature Phase Shift Keying)
  • D8PSK (8 Array Differential Phase Shift Keying).
The IF bandwidth is 5 KHz or 6.25 KHz or 12.5 KHz or 25 KHz based on data rate of source (voice or data) according to input signal coming from control card (Frequency Hoping). At a given time, only voice or data will be present and the information modulated is either ?coded voice? or ?asynchronous data? or ?synchronous data?. In BBP for secure data transfer and reception forward error correction (FEC) and encryption takes place depending upon control signals from control card.

Client - ECILBrochure

aControl Processor module

Control Card, is the master controller for the entire radio. It configures and commands various modules of the radio and provides MMI (user interface) through Front Panel and Remote Control. Its functions/specifications can be listed as follows:

  • Implementing Man Machine Interface (MMI).
  • It includes interfacing a) Keyboard b) Remote Control Unit (RCU) c) Fill Gun.
  • Configuring the Radio
  • Initiate Built In Test.
  • Provide LEDs / Display for visual indications for status and health of the radio.
  • Implement ECCM (Frequency Hopping scheme) for secure operations.

Over all control opertions and BIT(Built in Test) are carried out through IIC .

Client - ECILBrochure

aDSP Based Spectrum Analyser

The DSP based Data acquisition add-on card is built around dual Tiger SHARC Analog Devices DSPs with 128 MB SDRAM and additional circuitry for input signal interface. The two-channel voice frequency signal is selectable by a switch, controlled by DSP. An audio interface circuit is provided to route the voice frequency signal to headphone for operator listening. The voice frequency signal is also given to A/D converter, which will convert the analog data to its digital equivalent. The digital data is processed by the DSP to carry out the spectral, temporal and statistical analysis; classification of voice, noise, silence or data; identification of voice band data signal modulations and feature extraction. The board also consists of an FPGA to interface the DSP to the rest of the circuitry and communicate with the PCI controller. The card is capable of recording the input voice band signal clip of 60 seconds in a RAM buffer, which is to be analyzed by a separately designed DSP based demodulator card.

Client - ECIL

aSatcom QPSK Modem

The design and development of state of the art FPGA based QPSK modem for integration with base band DAMA processor system as part of SATCOM DAMA terminal.

  • QPSK Modem will provides modulation and demodulation at 70MHz IF with 5kHz and 25 kHz Bandwidth.
  • It Supports different data 2.88Kbps bps at 5kHz bandwidth and 19200 bps at 25kHz bandwidth.
  • Forward Error Correction will be done at rate ½ and constraint length (k) 7 (Coding and Decoding used are convolution and viterbi).
  • Modem interfaces to UHF SATCOM radios with 70MHz interface.
  • It will provide asynchronous RS422 and RS232 Interfaces for external control.
Client - ECILBrochure

aAcoustic Emission Sensor Network

The Acoustic Emission Sensor Network consists of the following components:

  • Embedded AE nodes
  • Zigbee to WiFi Converter
  • Cluster Server

The design and Development of Embedded AE nodes will be based on the MSP430 microcontroller solution. The Embedded AE nodes will acquire data from the AES (Acoustic Emission Sensor) sensor, compute derived AES parameters, maintain time of detection of signal and frame the messages and send them to a Cluster Server on a wireless network, which is based on ZigBee technology. The nodes will accept and implement configuration changes from the Linux based Cluster Server.

Client-IGC for Atomic Research,Kalpakkam,TNBrochure

aDigital Audio & Data Recorder

The Twelve Channel Digital Data and Audio Recorder (DDAR (Model No: ICS-DDAR-12C-3UR)) is used to record the analog audio inputs from four monitoring receivers and four operator mikes connected at OPICOM (these eight will be extend to the DDAR), data input from two Ethernet LANs and two RS-232 Ports. Four operators from four Controller posts will be controlled the DDAR via LAN. For each operator will get a pair of audio ports (one is Receiver input and another one is Voice annotation from his MIC of the headset). The digitized audio signals or Ethernet data or RS-232 data are stored as separate audio and data files on the hard disk. It uses inbuilt hard disk as a primary medium for record and replay. On DDAR, operating system (OS) and application software will be on a Compact Flash drive and recording will be on HDD. CD R/W drive is also provided for backup. RAID configuration is also provided for data redundancy (RAID1 - data mirroring) with two hard disks. DDAR supports to convert the audio file format from .wav to .mp3 and vice versa while taking the backup and restore respectively. DDAR is supported the audio and data compression for recording and on the fly replaying of the compressed audio/data files. While recording is in progress the operator can replay an old file on a separate channel.

Client - BEL-Ghaziabad Brochure

aBurst Generator / Tester Software - For defence applications

aCoder Decoder Software - For defence applications