百度试题 结果1 题目what is a digital signal? () A. discrete signals B. continuous signals C. both of a and b D. signals exist in the world 相关知识点: 试题来源: 解析 A 反馈 收藏
Analog and digital signalsare different types which are mainly used to carry the data from one apparatus to another. Analogsignals are continuouswave signals that change with time period whereas digital is a discrete signal is a nature. The main difference betweenanalog and digitalsignals is, analo...
Analog signals are continuous and vary smoothly, while digital signals are discrete and represented by binary code. Analog signals are susceptible to noise and degradation over distance, whereas digital signals can be more robust and easily corrected or enhanced through error-checking techniques. ...
Asdigitalsignalsaremorerobustthananalogueones,consumerswouldbeable togetmuchbettersoundandpicturequalitythroughDTV. 由于数码讯号较模拟讯号强,消费者可透过数码电视收到质素更佳的声音及画面。 www.info.gov.hk 2. Unlikeanaloguetransmissions,digitalsignalsdonot"bleed" into oneanotherandcanthereforebepackedclosertoget...
A digital signal represents information using discrete voltage or current levels. The two main properties of digital signals are: Discrete levels– A finite number of defined states (not continuous) Binary representation– Each level encodes one or more binary bits ...
Analog signals are continuous and fluctuate infinitely within a range, representing physical quantities as a continuous waveform. They take on an infinite number of values within a specified range and are characterized by their smooth, wave-like forms. Examples include the varying voltage in a tradit...
The timing signals have different pulse and spacing widths, and the circuit has an input for the tining signal and at least one output for continuous digital signals. One of the timing signal (TS) logic states (O) is a first control criterion for activation of a shift register (3) ...
Digital signal processing (DSP) is the use of processing techniques to analyze, transform, and transmit digital signals. Digital signals are bits of information sampled from continuous-time analog signals or produced directly from digital systems. Digital signals are discrete in time andquantized, whic...
The repeater can regenerate digital pulses to remove signal distortion, and the amplifier amplifies the og signal as well as the og signal distorted B. Digital signals are smaller than og signals and are not prone to distortion C. og signals are continuous and are not prone to distortion ...
Analogue signals are continuously variable, resembling the real-life continuous variations of the actual signals received by the radar antenna, see Figure 2.21(a). In its simplest form a digital signal consists of just on and off states (say, generating 0 and 1 V to distinguish the states),...