astronomy

S. C. Dutta Roy

S. C. Dutta Roy is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand S. C. Dutta Roy rather than just read about it. In short: Suhash Chandra Dutta Roy (born 1937) is an Indian electrical engineer and a former professor and head of the department of electrical engineering at the Indian Institute of Technology, Delhi. He is known for his studies on analog and digital signal processing and is an elected fellow of all the three major Indian science academies viz.

Key takeaways

S. C. Dutta Roy belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect S. C. Dutta Roy to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of S. C. Dutta Roy from memory before moving on to harder problems.

Reference excerpt

Suhash Chandra Dutta Roy (born 1937) is an Indian electrical engineer and a former professor and head of the department of electrical engineering at the Indian Institute of Technology, Delhi. He is known for his studies on analog and digital signal processing and is an elected fellow of all the three major Indian science academies viz. Indian Academy of Sciences, Indian National Science Academy, National Academy of Sciences, India as well as the Institute of Electrical and Electronics Engineers, Institution of Electronics and Telecommunication Engineers, Systems Society of India and Acoustical Society of India, The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Engineering Sciences in 1981.

Biography

S. C. Dutta Roy, born on 1 November 1937 at Mymensingh in the Bengal region of the British India (presently in Bangladesh) to Suresh Chandra Roy and Suruchi Bala, did his college studies at the University of Calcutta. After graduating in physics with honors in 1956, he completed a master's degree in engineering (MTech) in 1959 at the Institute of Radio Physics and Electronics and enrolled for his doctoral studies at Calcutta University Rajabazar Science College. During his doctoral studies, he worked as a research officer at River Research Institute during 1960–61 and as a lecturer of physics at Kalyani University from 1962. It was during his service at Kalyani University, he received the degree of DPhil in radio physics and electronics in 1965. The same year, he moved to the US for his post-doctoral work and served as an assistant professor at the University of Minnesota till 1968. Returning to India, he joined the Indian Institute of Technology, Delhi in September 1968 as an associate professor of electrical engineering and served the institution for more than thirty years. Starting his career at IIT Delhi in 1968 as associate professor, Dutta Roy served in various positions as a professor (1970—98), head of the department of electrical engineering (1970–73) and a dean of undergraduate studies (1983–86) till his regular superannuation from service in 1998. In between, he took two sabbaticals, the first during 1973-74 to serve as a visiting professor at University of Leeds and the other, as a visiting fellow at Iowa State University during 1978-79. Post-retirement, he served as an emeritus fellow during 1998—2004, as an INSA senior scientist during 2004–07 and as an INSA honorary science from 2007, all at IIT Delhi till 2010. Since then, he serves as an honorary scientist of the Indian National Science Academy. Dutta Roy is married to Mala Choudhury.They have one son Amaltash.

Legacy

Dutta Roy's principal areas of studies have been network synthesis, solid state circuits, distributed networking and signal processing and he is known to have done extensive researches on digital and analog signal processing. He focused on network studies during his doctoral days but shifted focus to RC circuit after he moved to Minnesota, particularly economic inductor simulation and low sensitivity circuits. It was during this period, he developed a method for calculating sensitivity in active and passive filters and introduced a network synthetic approach to variable frequency oscillators. From the seventies, his work was mainly on digital and analog signal processing. He holds three Indian patents for his work, and his researches have also assisted others in their work. His researches have been documented in several peer-reviewed articles; and ResearchGate, an online repository of scientific articles, has listed 306 of them. Besides, he has contributed chapters to three books, including the Volume 10 (Signal Processing and its Applications) of the Handbook of Statistics published by Elsevier and his work has been cited by many authors. He has also guided thirty doctoral scholars in their studies. Dutta Roy has designed and authored video courses covering five semesters which are being promoted by National Programme on Technology Enhanced Learning, the e-learning platform of the Ministry of Human Resource Development, through their online learning platform. He has been associated with several government agencies as well as a number of international science journals such as International Journal of Circuit Theory and Applications, and Circuits and Systems journal. He was the guest editor for Issue 5 volume 34 of the Journal of Research of the Institution of Electronics and Telecommunication Engineers. He served as a member of the administrative council of the Indian National Science Academy in 2009 and is a member of the National Advisory Committee of Institute of Radio Physics and Electronics of the University of Calcutta. He has delivered invited or keynote speeches at many international seminars and conferences, the 54th Annual Meeting of Indian Association for the Cultivation of Science in 1989 and the 2013 International Conference on Signal Processing and Communication (ICSC 2013) organized by the Jaypee Institute of Information Technology featuring among them.

Chapters N. K. Bose, C. Rao (Editors); S. C. Dutta Roy, B. Kumar (co-authors) (21 November 2007). Handbook of Statistics: Signal Processing and its Applications. Vol. 10. Elsevier. pp. 832–. ISBN 978-0-08-055421-1. {{cite book}}: |author1= has generic name (help) Purnendu Ghosh, Baldev Raj (Editors); S. C. Dutta Roy (co-author) (30 December 2015). "Glimpses from a Lifetime in Teaching and Research". The Mind of an Engineer. Springer. pp. 79–. ISBN 978-981-10-0119-2. {{cite book}}: |author1= has generic name (help)

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Illustrations

Worked examples

Example 1 — a first encounter with S. C. Dutta Roy

Start with the simplest possible case. Write down what S. C. Dutta Roy claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to S. C. Dutta Roy before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about S. C. Dutta Roy ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of S. C. Dutta Roy

In research: S. C. Dutta Roy appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses S. C. Dutta Roy in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: S. C. Dutta Roy is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1937 births, Academic staff of IIT Delhi, Academic staff of the University of Kalyani, so understanding it makes those chapters shorter.
In everyday life: Look for S. C. Dutta Roy outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study S. C. Dutta Roy in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what S. C. Dutta Roy means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain S. C. Dutta Roy out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is S. C. Dutta Roy in simple terms?

Why does S. C. Dutta Roy matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study S. C. Dutta Roy?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on S. C. Dutta Roy.