Signal Systems and communication engineering is the module that captured my attention the most during my first and second year at the university as the Signal Processing combined with Control Systems provides the necessary tools to analyze any system mathematically. Also, Digital Signal Processing has become an indispensable application for a numerous medical appliances today, and it will persist to play a crucial role in the analysis of medical statistics (for example ECG, EEG, EMG, EOG etc.). Of course, it’s also a worthy cause as it is at the core of everything from mobile phones to aircraft, and it is hard to think of any part of life that has not been affected by advances in signal processing and control systems. Therein lies its utter beauty and the reason it is the only field of study I am attracted to and these concepts/notions lead me to create my final year undergraduate project in the field of DSP. I decided to design and evaluate a decimation filter chain for sigma-delta modulators that deploys a slink and two all pass based polyphase IIR filters that can be employed in a wearable Electrocardiogram (ECG) monitoring device with minimized hardware utilization and power and currently underlying towards a successful completion.
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Even one decade later, I can still recall the radio (which I was able to catch considerable number of stations) that I build during my childhood using a piece of wire for antenna, a coil of wire, diode and a tuning capacitor. It was my own secret gadget I really treasured which I spent most of my childhood with at that time. Though by no means blazing in itself, this gadget with its spectacular glamour escorted me as if into another world, a world abounded with enigma that only inherent to the realm of signal systems. The accomplishment of academic excellence and the refinement of hands-on aptitudes were my prime objectives during my rewarding years at the university. I have elaborated a systematic path of specialized skills in my undergraduate program, developing a solid foundation in signal systems and communication engineering. Building a digital FIR filter for a distorted audio signal was one of my DSP projects works that I involved in my second year. MATLAB and VHDL tools were used in creating the low pass filter. When we input the distorted audio signal, the digital filter attenuated the noise and was able to deliver noise free high-quality audio. In addition, I also got involved in building a Microcontroller-based real-time digital audio filter. The project centered on building, testing and presenting a complete working analog to digital audio convertor. This developed the programming skills on MP Lab and knowledge on a microcontroller (pic16 was used in this case) and its progress environments. Even though the digital filters are known for providing fast effective and cheaper solutions, I took the challenge in building an analog audio filter as well. It wasn’t as hard as I thought and required a few power transistors, Op-amps, npn/pnp BJTs, few resistors, capacitors and diodes. A signal generator was used to create a noisy signal and before connecting the output to the speaker, the results were experimented using the oscilloscope. OrCAD PSpice were used in designing the amplifier and simulated before it comes to the hardware part so that more precise resistor, capacitor values etc. could be achieved. Besides DSP involved projects, robotics project creating a maze solving robot (MBED was used in prototyping) have enriched my scope of practical work as an engineering student. These various project works improved my ability to work both independently and in a team environment. Most of my project works were inspired by the engineering department where I worked in a multidisciplinary team of engineering students from across the engineering faculty to find innovative and sustainable solutions. Thenceforward, I have cherished modules like Digital Systems and Implementations, Digital Signal Processing and Signals systems and communication. With quite standard academic achievements in virtually all the undertaken modules, I was ranked top 3 of entire engineering faculty with the completion of my first year. For my outstanding academic progress, I have been awarded the excellence award and the dean’s list award. And the scholarship I have been awarded for my A-level achievements was continued with my academic excellence. I achieved 78% average for my second-year achievements which was publicized recently. In addition to projects undertaken within my department, I have been volunteering as a member of the Restarters — aiding people learn to repair broken electronics and electricals. What drew me in is the passion of a repair task and the application of collective techniques. Further, this encouraged and empowered people to use their electronics longer in order to reduce waste.
I wish to obtain more innovative knowledge in this amusing technology and develop into an experienced professional in this field. As an individual who strives for excellence and who desires to be a part of innovative research prospects in DSP and control system Engineering, I wish my potential education at your prestigious university can reinforce my skills and bring my cognitive proficiencies into full play. In applying for your program, I have set me to yet another major challenge—to attain the rewarding education and proficient practical applications in communication and signal processing. But the greater the complexity, the greater the success that I acquire from completing this challenge.
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