it refers to information to be communicated in digital form if it comes from a computer.
What is DATA
100
Translating an analog signal into a digital signal is called analog-to-digital (A/D) conversion, digitizing a signal, or encoding.
The device used to perform this translation is known as an _________
What is analog-to-digital converter or ADC.
100
The most common DSP application is __________. A DSP processor can perform bandpass, low-pass, high-pass, and band-reject filter operation.
What is FILTERING
100
is a process that reduces the number of binary words needed to represent a given analog signal.
What is Data compression
100
is the process of examining a signal to determine its frequency content.
What is Spectrum analysis
200
It is the processing of analog signals by digital methods. It may involve converting an analog signal to digital and then processing with a fast digital computer
What is DSP
200
Translating a digital signal into an analog signal is called digital-to-analog (D/A) conversion. The circuit used to perform this is called a ____________________________.
What is digital-to-analog (D/A) converter or DAC or a decoder.
200
The most widely used technique for digitizing information signals for electronic data transmission is
What is pulse-code modulation (PCM).
200
is the use of a fast digital computer to perform processing on digital signals.
What is DSP
200
is the process of sampling a recurring analog signal transmitted in the presence of noise.
What is Signal averaging
300
is a way of moving bits from one place to another where it is characterize by "Send only 1 bit at a time "
What is SERIAL TRANSFER
300
(PAM) stands for
What is Pulse-amplitude modulation
300
(PWM) stands for
What is Pulse-width modulation
300
(PPM) stands for
What is Pulse-position modulation
300
is a process of signal compression and expansion that is used to overcome problems of distortion and noise in the transmission of audio signals
What is COMPANDING
400
is a way of moving bits from one place to another where it is characterize by "Transmit all bits of a word simultaneously "
What is PARALLEL TRANSFER
400
(PCM) stands for
What is Pulse-code modulation
400
In the Basic Principles of Data Conversion, A/D Conversion,
the samples are converted to a binary number whose value is close to the actual sample value. Errors associated with this process are known as ____________
What is quantizing errors.
400
_________ is expressed as a percentage of the maximum, or full-scale, output voltage, which is the reference voltage value.
What is ERROR
400
All A/D and D/A conversion and related functions, as well as companding, are taken care of by a single large-scale IC chip known as a _________
What is codec or vocoder.
500
are sequential logic circuits made up of a number of flip-flops connected in cascade which take care of the convertion between parallel and serial and vice versa.
What is Shift Registers
500
Data transfers in communication systems are made serially; each bit of a word is transmitted one after another.
The _______ is transmitted first, and the __________last.
What is LSB MSB
500
To retain the high-frequency information in the analog signal, a sufficient number of samples must be taken to adequately represent the waveform. The minimum sampling frequency is twice the highest analog frequency content of the signal.
This minimum sampling frequency is known as the__________________
What is Nyquist frequency.
500
In the Basic Principles of Data Conversion if the sampling frequency is not high enough, ___________ occurs. This causes a new signal near the original to be created.
What is ALIASING
500
___________ is the ratio of the rms signal voltage to the voltage value of the highest “spur” expressed in decibels.