Comparing with an analog signal assuming a continuous range of values, a digital signal assumes discrete values, usually two permitted values.
√
举一反三
- what is an analog signal? A: Analog signal is a continous values B: Analog signal is a discrete values C: Analog signal is sometimes continous,sometimes discrete
- (True or False ) The values of an analog signal flow smoothly from one to the next.
- In the time domain， the procedure of restoring the original continuous-time signal from discrete sample values is called_______
- There are two types of cultural values: universal values and culture-specific values.
- Generally speaking, digital transmission can get higher signal quality than analog transmission, because? A: The repeater can regenerate digital pulses to remove signal distortion, and the amplifier amplifies the analog signal as well as the analog signal distorted B: Digital signals are smaller than analog signals and are not prone to distortion C: Analog signals are continuous and are not prone to distortion D: Digital signal is easier to sample than analog signal
内容
- 0
Analog signal is continuous
- 1
what is a digital signal? () A: discrete signals B: continuous signals C: both of a and b D: signals exist in the world
- 2
Analog signal is continuous A: 正确 B: 错误
- 3
The A/D converter is used to convert the analog signals to digital signals. For an 8-bit A/D converter with a conversion speed of 1 ms and an analog input range of 0-5V, if a 3.3V analog signal is inputted, the digital signal output should be: A: 168 B: 3.3 C: 168.9 D: 3
- 4
Ecosystem service values can be divided into use values and non-use values. Where use values include ( ). A: direct value B: indirect value C: option value D: existence value