Bandwidth is an abbreviation for the width of the passband of a display video amplifier, which refers to the total number of pixels scanned by an electron gun in one second, i.e., the sum of the number of pixels displayed on all the row (horizontal) scan lines and field (vertical) scan lines per unit of time, in MHz.
When studying the dynamic characteristics of sensor frequency with sinusoidal input, frequency characteristics and phase frequency characteristics are commonly used to describe the dynamic characteristics of the sensor, and the important index is the bandwidth. When using sinusoidal input to study the dynamic characteristics of the sensor frequency, commonly used frequency characteristics and phase frequency characteristics to describe the dynamic characteristics of the sensor, the important index is the bandwidth, referred to as the bandwidth.
Expanded Information:
The meaning of bandwidth in analog signaling systems:
In analog signaling systems, bandwidth is used to identify the width of the frequency occupied by a transmitted signal, which is determined by the highest and lowest frequencies of the transmitted signal, and the difference between the two is the The difference between the two is the bandwidth value, and is therefore also known as the signal bandwidth or carrier frequency bandwidth in Hz.
Bandwidth is actually a measure of the spectrum occupied by a signal, and can be viewed as a spatially related quantity. In contrast, the transmission rate of a signal is a physical quantity related to both space and time, defined as the amount of data transmitted over a channel per unit of time.
In order to rationalize the use of spectrum resources, the International Telecommunication Union (ITU) defines a frequency range for each communication system, which is also known as a frequency band, and the spectral width of the frequency band is also called the operating bandwidth. For example, GSM has an operating bandwidth of 25 MHz, while WCDMA and CDMA both have an operating bandwidth of 30 MHz.
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