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Method and device for obtaining modulation bit error rate

An acquisition method and bit error rate technology, applied in transmission monitoring, synchronization/start-stop systems, electrical components, etc., can solve problems such as increased costs, high algorithm requirements, and high MER monitoring costs

Active Publication Date: 2022-02-22
成都德芯数字科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it has been found in practice that the current monitoring of MER is usually carried out using dedicated instruments, and each transmitter needs to be equipped with one of the above-mentioned dedicated instruments, thus resulting in higher monitoring costs for MER; another On the one hand, MER monitoring can also use the tuner TUNER to assist monitoring, but this method also needs to read the demodulated constellation value through software, and then calculate according to the formula. It can be seen that this MER monitoring method needs Additional hardware is added, which increases the cost. At the same time, this kind of MER monitoring method has higher requirements on the algorithm.

Method used

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  • Method and device for obtaining modulation bit error rate
  • Method and device for obtaining modulation bit error rate
  • Method and device for obtaining modulation bit error rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Please see figure 1 , figure 1 A schematic flowchart of a method for obtaining a modulation bit error rate is provided for the embodiment of the present application. The acquisition method of the modulation bit error rate can be applied in DTMB (Digital Terrestrial Broadcasting) for real-time monitoring of the wireless channel quality, so as to ensure the normal operation of the exciter and the transmitter. Wherein, the method for obtaining the modulation bit error rate includes:

[0066] S101. Receive a transmission signal through a predistorter.

[0067] In this embodiment, the transmission signal is obtained through power amplification, frequency adjustment, filtering and analog-to-digital conversion. Wherein, it can be understood that the transmission signal is obtained through an LNA (Low Noise Amplifier), a frequency converter, a filter, and an analog-to-digital converter.

[0068] In this embodiment, pre-distortion refers to pre-distortion technology, which i...

Embodiment 2

[0090] Please see figure 2 , figure 2 It is a schematic flowchart of another method for obtaining a modulation bit error rate provided in the embodiment of the present application. figure 2 The flow diagram of the described method for obtaining the modulation bit error rate is based on figure 1 The schematic flowchart of the method for obtaining the modulation bit error rate described is improved. Wherein, the method for obtaining the modulation bit error rate includes:

[0091] S201. Receive a transmission signal through a predistorter.

[0092] In this embodiment, the transmission signal is obtained through power amplification, frequency adjustment, filtering and analog-to-digital conversion. Wherein, it can be understood that the transmission signal is obtained through an LNA (Low Noise Amplifier), a frequency converter, a filter, and an analog-to-digital converter.

[0093] In this embodiment, the transmission signal is amplified by an LNA (Low Noise Amplifier), co...

Embodiment 3

[0136] Please see image 3 , image 3 It is a schematic structural diagram of an apparatus for acquiring a modulation bit error rate provided in an embodiment of the present application. Wherein, the acquisition device of the modulation bit error rate includes:

[0137] a receiving unit 310, configured to receive a transmission signal through a predistorter;

[0138] A processing unit 320, configured to preprocess the transmission signal to obtain calculation data for calculation;

[0139] A determining unit 330, configured to acquire theoretical data corresponding to the transmission signal, determine the theoretical data as the transmitted data, and determine the calculated data as the received data;

[0140] The calculation unit 340 is configured to perform calculation according to the transmitted data, received data and a preset calculation formula to obtain the modulation bit error rate.

[0141] In this embodiment, the transmission signal is obtained through power am...

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Abstract

An embodiment of the present application provides a method for obtaining a modulation bit error rate, which relates to the field of communication technology, including: receiving a transmission signal through a receiving channel of a predistorter; and preprocessing the transmission signal to obtain calculation data for calculation ; Acquire the theoretical data corresponding to the transmission signal, and determine the theoretical data as the transmitted data, and determine the calculated data as the received data; calculate according to the transmitted data, received data and preset calculation formula, and obtain the modulation bit error rate (MER) . Implementing this implementation manner can reduce the monitoring cost of MER and reduce the requirements on the algorithm.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular, to a method and device for acquiring a modulation bit error rate. Background technique [0002] At present, in digital terrestrial wireless coverage, MER (Modulation error ratio, modulation error rate (MER) is an important index to measure the quality of wireless channels. Therefore, in existing technology centers, real-time monitoring is usually required in wireless base stations The value of MER, so that the wireless base station can adjust the working status of the exciter and transmitter in real time according to the value of MER. [0003] However, it has been found in practice that the current monitoring of MER is usually carried out using dedicated instruments, and each transmitter needs to be equipped with one of the above-mentioned dedicated instruments, thus resulting in higher monitoring costs for MER; another On the one hand, MER monitoring can also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/309H04L25/49
CPCH04B17/309H04L25/49
Inventor 李俊魏作贤
Owner 成都德芯数字科技股份有限公司