Design Customer

SATHISH CHANDRA K

No: ****/*,*st Floor, *th Cross, 4th Main, K.N Extension,Yeswanthapura,

Bangalore -560022.

KARNATAKA. INDIA

Mobile: 998*******. E-mail:

*****************@*****.**.**

PROFILE:

. 14+ years of rich experience in Research and Development, Production,

Testing and Teaching from different private sectors.

. Proven abilities in Signal processing algorithms, embedded software,

System analysis, simulation & algorithms related to Gimbal control

systems, communication, Gun control and weapon systems.

. Signal processing algorithms related to digital communication, FFT

based spectrum analyser, Speech compression.

. Extensively used MATLAB/Simulink for algorithm development,

verification and implementation on DSP/FPGA.

. Ability to interface theory and practice to realize products and

provide guidance and direction to teams involved in implementation

with C, Assembly and VHDL

. Strong concepts in signal processing and communication systems-

Ability to grasp new concepts and technologies.

. Worked with clients like CVRDE, BEL, LASTEC, IRDE, ECIL, DEBEL and

TBRL Ministry of Defence, India.

. Team player who consistently supports management.

SKILLS:

. Digital Signal Processing, Bode plot, Time and Frequency domain

analysis.

. MATLAB/SIMULINK Simulation and analysis.

. Working knowledge of C and ASSEMBLY.

. Implementation - DSP, Fixed point, Floating point and ADSP21XX

processor

. Control System, Controller design and system integration.

. Good analytical / debugging ability.

. Board Design, Digital, Analog, Mixed circuits, Testing and Debugging.

. Digital Fundamentals, Signal Processing concept, Digital filter

designs.

. Software Design, Development,Testing,Debugging and Integration.

Achievements:

. Project Management: Lead a team in design, development of products

from concept to production. Activities include Customer Interface,

Requirements Analysis and Specification, Software Design, Hardware

Design, Coding, Resource Estimation, Delivery Schedules, Project

Tracking.

. Lead a team in design, development and implementation of control

system for Gun control and Laser Guided system, software algorithms

and verification.

. Coordinated with the team members effectively and guiding the junior

members, in Documentation, Manuals, and Design Reports, Customer

support / demos / training.

. Hands on experience with on-site remedial and preventive maintenance

at customer facilities, and component level troubleshooting on entire

systems.

. Hardware Proficiency: Digital, Analog and Mixed Signal systems design,

ADC, DACs, Communication and other Peripheral Devices. In addition I

worked with both hardware and software teams to implement digital

signal processing (DSP) functions including digital filtering FIR and

IIR, signal modulation, demodulation.

Strengths:

. Leadership and customer support: Assessment and execution capability

to work independently on a project from scratch to finish by using

proper techniques and tools.

. Practical aspects of Algorithm development and implementation- Fixed

point implementation, Optimisation for real time and precision.

. MATLAB/SIMULINK for algorithm design/verification- Ability to develop

'm' file programs to prove concepts and feasibility.

. Ability to lead small focused teams involved in product development.

. Good at Laplace, Z, Fourier Transforms continuous and discrete time,

FFTs, Digital Filtering, Sampling, Decimation, Interpolation, Multi

rate Signal Processing, etc.

PROFESSIONAL EXPERIENCE:

Project Lead - Design and Development

Spectrum InfoTech Pvt Ltd (Wholly owned by LARSEN &TOUBRO), R&D

Organization. BANGALORE.

Feb/2005 - Present

Current Project:

Dual Axis Stabilised Gimbal (DASGA) - LASTEC,Delhi.

A fine tuned control system is design to meet the desired

specifications for dual axis stabilized Gimbal platform assembly. To begin

with, we have considered the open loop frequency response of the Gimbal

assembly (plant) and motor.

Controllers are designed independently for azimuth and elevation.The

philosophy adopted is to first design a fast stabilization (rate) loop, in

which bore sight gyros are used as sensors for rate feedback. The

stabilization loop is then nested within a position (outer) loop that uses

encoder position feedback. The role of the stabilization loop is to

attenuate jitter and stabilize the line of sight (LOS) against

disturbances, while the main role of the position/track loop is to minimize

the positioning (or target tracking) error.

Responsibility:

1. Responsible for setting and managing customer expectations and for

bringing to a positive conclusion any customer issues.

2. Responsible for Controller Design (for open loop and closed

loop),Development,Testing and System Integration.

3. Involved extensively in integration at customer place for System

Debugging, integration and field

Trails.

4. Software design,development,implementation,testing and system

Integration.

5. Board design,Development,implementation,testing and system

Integration.

Successfully designed and implemented number of projects briefly stipulated

here below:

. Automatic Test Equipment (ATE) for Compact Electronic Unit: CVRDE,

Chennai

Worked as Project Lead:

Automate the testing process for functional checks, performance

checks, troubleshooting and tuning aid for fully assembled compact

electronics unit and PCBs of the compact electronic unit (CEU).

The compact electronic unit is the heart of the gun control

system, which houses the electronics and logics for control law

implementation for gun and turret stabilization.

Responsibility:

1. Responsible for System integration and achieving the customer

expectations.

2. Guided 5 engineers in System related issues, Design, Development,

Implementation,

Testing and Integration with unit and cards.

3. Discussion with Team members for test cases verification and providing

tolerance for test cases.

4. Involved extensively in integration at customer place and

troubleshooting on entire systems.

5. Board design,Development,implementation,testing and system Integration.

. Beam directing electronics unit (BDEU) - LASTEC,Delhi

Worked as Technical Lead:

ADSP 2181 - Control algorithm - IIR filters for precise gain and phase

matching and System Integration.

Stabilization and Tracking loops - GYROs and ENCODERs.

Designed and Developed Digital Signal Processing (DSP) card.

The following tasks are performed by DSP card.

1. Digitization of analog input signals through ADC.

2. Implementation & realization of stabilization & tracking control

loops.

3. Conversion of digital output of control loops in to analog forms

through DACs.

Responsibility:

1. Responsible for System integration and achieving the customer

expectations.

2. Control system: (Controller design) closed loop and Open loop control

system, Design,

Development, Implementation,Testing and Integration with system.

3. Board design,Development,implementation,testing and system Integration.

. Digital Down Converter (DDC) - BEL,Bangalore

Worked as Technical Lead:

The DDC board receives inputs from an IF receiver i.e. the

information from the RADAR. The DDC board samples this IF signal and

down samples it to base-band and used for processing.

IF 30 Mhz- Under sampling 24 Mhz- NCO, I/Q channel, FIR down

conversion.

Responsibility:

1. Requirement analysis and complete System Simulation in MATLAB .m

file, Testing and Verification with VHDL.

2. Customer Interaction and Delivery of the Product.

. Digital Compact Electronic Unit (DCEU): Controller for Gun

stabilisation and Tracking -

CVRDE, Chennai:

Worked as Designer: Software and Hardware Board design

ADSP 2181 software-Control algorithm - IIR filters for precise gain

and phase matching and System Integration.

Digital Compact Electronic Unit (DCEU) is developed to use in

Gun Control System of MBT ARJUN. It operates in four modes: Power,

Bite, Primary (SLAVE) and the STAB mode.

Responsibility:

1. Software Modification, ADSP 2181 assembly coding, MATLAB simulation

and verification, implementation, testing.

2. Involved extensively in integration with Gun control system MBT

ARJUN at customer place and troubleshooting on entire systems.

3. Board Design, Development and Testing

. Tank Digital Link (TDL) - CVRDE, Chennai

TDL establishes a digital communication b/w different subsystem of the

battle tank. The communication was established through two types of

interfaces, one with 1553B MIL-STD communication bus and another

through Ethernet interface.

Responsibility:

1. Coding and Testing at customer place.

PROJECT ASSISTANT

Aug/2002 to Sep/2004

Sophisticated Instruments Facility (SIF)

Indian Institute of Science. (IISc).

BANGALORE.

. Speech Compression Based on ADPCM (32 kbps)

Speech compression from 64kbps to 32kbps using ADPCM.

Responsibility: Assembly coding and testing.

. Multi rate filtering - Decimation and Interpolation.

Interpolation:

The process of inserting additional samples between the original low

rate samples.

Decimation:

The process of removing or deleting samples between original high-rate

samples.

Aliasing must be watched in decimation, never a problem in

interpolation.

Responsibility:

1. Design, MATLAB simulation, Assembly coding and testing.

Teaching Experience:

Aug/2000 to Jul/2002

Integrated Business Software (IBS)

BANGALORE.

. Major Topics: Digital Signal Processing, MATLAB/SIMULINK, ADSP/TI

Processor.

. Data Compression using JPEG - In-House Development.

Personal details:

Date of Birth : 17-08-1975

Sex : Male

Father's Name : (Late) K.Sundara Nayak

Nationality : Indian

Marital Status : Married

EDUCATION

. BE : Telecommunication. S.S.I.T Tumkur, 1998 Bangalore

University - 64%

. PUC : Vivekananda College Puttur,(D.K) 1994 - 75.0%

. SSLC : St.Ann's High School, Virajpet Coorg. 1992 -- 77.2%

. LOGICAL REASONING AND INTELLIGENT SYSTEM DESIGN course at PROFICIENCE

in Indian Institute of Science (IISc) Bangalore from Aug 2008 to

December 2008.

. DIGITAL SIGNAL PROCESSING course at Integrated Business Software,

Bangalore Jan 2000 to Jul 2000.

. Diploma in Business Management from ICFAI University.

. Advance Diploma in Business Management from ICFAI University.

. MBA in IT and Systems from ICFAI University.

. On job training - PLM - Larsen & Toubro, Mysore.

REFERENCES: Available on request.

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