Digital signal processing (DSP) is that the use of digital processing, like by computers or more specialized digital signal processors, to perform a good sort of signal processing operations .The digital signals processed during this way are a sequence of numbers that represent samples of endless variable during a website like time, space, or frequency .In digital electronics, a digital signal is represented as a pulse train , which is usually generated by the switching of a transistor.
WHY ACTUALLY WE NEED DSP?
- Digital signal processing take world signals like voice, audio, video, temperature, pressure, or position that are digitized then mathematically manipulate them.
- When it comes in terms of audio, it significantly increases the overall value of hearing protection. Unlike passive protection, DSP suppresses noise without blocking the speech signal.
- Digital signal processing is primarily in arenas of audio signals, speech processing, RADAR, audio, SONAR, voice recognition, and some financial signals.
- When comes to analog signal ,it may be damaged due to external medium noise and due to resistive and reactive elements there is power loss which is certainly not required .On the other hand digital provides us with ultra fast processing, low power, and also we can manipulate data by eliminating the noise.
- As it is programmable, a DSP can be used in a wide variety of applications.
- we will create our own software or use software provided by ADI and its third parties to style a DSP solution for an application.
SCOPE AND QUALIFICATION:
DSP has revolutionised the way we glance at the new electronic and telecom products, in terms of size, power and efficiency. We use a myriad of devices in present days. Usually the candidates with a background in electronics engineering can get into these industries because it requires a minimum of BE/B-Tech/BS in ECE/EEE as a necessary qualification.
WHAT ARE THE SKILLS REQUIRED TO BE A DIGITAL SIGNAL PROCESSING ENGINEER:
- Comprehensive knowledge of wireless communication standards, DSP processors, and OFDM wireless modem design.
- Specific experience in SW architectures for audio/multimedia frameworks.
- Hands-on experience in digital signal processing, DSP/ARM assembly, and development of wireless product.
- Familiarity with Adaptive Signal Processing.
- Sound knowledge of DPLL modem generation and IC design, and communication device architecture.
- Implement reliable and efficient solutions for demanding aircraft applications and mission critical system and work with a wide variety of services, including system design, LRU design, board design, signal processing, failure analysis, EMI, Project Engineering and merchandise support.
- In-depth knowledge of ARM processors, ADS system tools, software programming of DSP C-language and high speed interfaces.
- Conversant in SPICE-compliant development process, MATLAB, CDMA2000, and Cable modem.
- Sound knowledge of signal processing, digital links, Sigma Delta ADC, and wireless design.
- Ability to interpret and communicate technical details, accurately and precisely.
- Strong problem solving, organizational and project management skills.
- Identify, implement, and balance the newest low risk efficient logic technology vs. cutting edge technology for demanding computerized and embedded control system.
JOB OPPURTUNITIES IN DIGITAL SIGNAL PROCESSING INDUSTRY:
- Digital signal processing engineer
- Firmware engineer
- Principal systems engineer
- DSP software engineer
- Algorithm developer
- Radar signal processing engineer
WHAT ARE THE RESPONSIBILITIES OF DIGITAL SIGNAL PROCESSING ENGINEER ?
- Liable for system designing, developing software components also as maintaining coding specifications
- Perform experimental testing, occasionally involving travel, and analyze and present the results to internal peers and external customers
- Designing analog circuits and developing techniques of implementing high speed interfaces
- Develop or improve signal processing algorithms and control systems, starting with simulation , continuing with rapid software prototyping, and ending with embedded hardware implementation.
- Developing DSP software architecture also as overseeing software performance
- Provide signal processing and control systems expertise as a private contributor and as a neighborhood of a little multidisciplinary team
- Handling validation and debugging of functional software
- Developing strategies for debugging and testing of software products
- Perform necessary engineering analysis and calculations for the project
- Ensuring that the DSP software deliverables meets deliverable schedules and quality standards by coordinating with the project team
- Providing support in chip bring-up in line with the assembly requirement
- Think outside the box up a search and new development .
PAYSCALE :
The average salary of a signal processing engineer is around 6-7L/Yr.