Digital Signal and Processing (PRELIM) Questions & Answers

Digital Signal and Processing (PRELIM) Questions & Answers analog to digital converter - CORRECT ANSWER - is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. Clock Frequency, RAM Size, Data Bus Width, ROM Size, I/O Voltage - CORRECT ANSWER - There are five different aspects that varies from each DSP Continuous Function - CORRECT ANSWER - is a function that does not have any abrupt changes in value, known as discontinuities. continuous time - CORRECT ANSWER - A system operates on a continuous time signal input and produces a continuous time signal output. continuous variable - CORRECT ANSWER - is a variable whose value is obtained by measuring, i.e one which can take on an uncountable set of values continuous-time signal / analog signal - CORRECT ANSWER - A signal of continuous amplitude and time is known Convolution - CORRECT ANSWER - is one of the big reasons for converting signals to the frequency domain, since convolution in time becomes multiplication in frequency. Correlation - CORRECT ANSWER - refers to the degree of correspondence or relationship between two variables. Digital signal processing - CORRECT ANSWER - is heavily used in day-to-day operations, and is essential in recreating analog signals to digital signals for many purposes Digital signal processing - CORRECT ANSWER - It is heavily used in day-to-day operations, and is essential in recreating analog signals to digital signals for many purposes. Discrete Fourier Series - CORRECT ANSWER - is any periodic discrete-time signal comprising harmonicallyrelated discrete real sinusoids or discrete complex exponentials, combined by a weighted summation. Discrete time - CORRECT ANSWER - values of variables as occurring at distinct, separate "points in time", or equivalently as being unchanged throughout each non-zero region of time ("time period") discrete-time system - CORRECT ANSWER - It refers to anything that takes a discrete-time signal as input and generates a discrete-time signal as output. DTFT - CORRECT ANSWER - These transform is often used to analyze samples of a continuous function..