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Peak power determining method, peak-to-average power ratio determining method, peak power determining device, and peak-to-average power ratio determining device

A technology of peak-to-average power ratio and peak power, which is applied in the field of signal processing and can solve problems such as low peak power detection efficiency

Active Publication Date: 2017-02-22
TRIDUCTOR TECH SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the detection efficiency of peak power in the prior art is low, thereby providing a method and device for determining peak power and peak-to-average power ratio

Method used

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  • Peak power determining method, peak-to-average power ratio determining method, peak power determining device, and peak-to-average power ratio determining device
  • Peak power determining method, peak-to-average power ratio determining method, peak power determining device, and peak-to-average power ratio determining device
  • Peak power determining method, peak-to-average power ratio determining method, peak power determining device, and peak-to-average power ratio determining device

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Embodiment 1

[0040] This embodiment provides a method for determining peak power, such as figure 1 As shown, the method includes:

[0041] Step S101, acquiring the sampling power at the current sampling moment.

[0042] In this embodiment, the sampling power of each sampling signal may refer to the sampling power at the current sampling moment of the sampling. At each sampling, the voltage or current of the signal at the current sampling time can be sampled, and then the sampling power can be calculated. When re-sampling, the re-sampling time is taken as the current sampling time.

[0043] Step S102, comparing the sampling power at the current sampling moment with the estimated peak power at the current sampling moment.

[0044] If the current sampling time is kT, the previous sampling time is (kT-T), k represents the sequence number of the current sampling, where T is the sampling period. The estimated peak power at the previous sampling time may be the actual peak power at the previou...

Embodiment 2

[0074] The embodiment of the present invention also provides a method for determining the peak-to-average power ratio, which can be used to calculate the peak-to-average power ratio in real time, such as figure 2 As shown, the determination method of the peak-to-average power ratio includes:

[0075] Step S201, calculating the average power at the current sampling moment;

[0076] Step S202, using the peak power determination method to determine the actual peak power at the current sampling moment;

[0077] Step S203, dividing the actual peak power at the current sampling time by the average power at the current sampling time to obtain a peak-to-average power ratio at the current sampling time.

[0078] The method for determining the peak power refers to the method for determining the peak power described in the above embodiments of the invention. In this embodiment, the peak-to-average power ratio at the current sampling time is calculated by calculating the average power ...

Embodiment 3

[0103] This embodiment provides a device for determining peak power, such as Figure 4 As shown, the device for determining the peak power includes: an acquisition unit 401 , a first comparison unit 402 and a first determination unit 403 .

[0104] The acquiring unit 401 is configured to acquire the sampling power at the current sampling moment.

[0105] In this embodiment, the sampling power of each sampling signal may refer to the sampling power at the current sampling moment of the sampling. At each sampling, the voltage or current of the signal at the current sampling moment can be sampled, and then the sampling power can be calculated. When re-sampling, the re-sampling time is taken as the current sampling time.

[0106] The first comparison unit 402 is configured to compare the sampling power at the current sampling moment with the estimated peak power at the current sampling moment.

[0107] If the current sampling time is kT, the previous sampling time is (kT-T), whe...

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PUM

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Abstract

The invention relates to the field of signal processing, and specifically relates to a peak power determining method, a peak-to-average power ratio determining method, a peak power determining device, and a peak-to-average power ratio determining device. The peak power determining method comprises the following steps: getting the sampling power at the current sampling time; comparing the sampling power at the current sampling time with the estimated peak power at the current sampling time; and when the sampling power at the current sampling time is higher than the estimated peak power at the current sampling time, determining the sampling power at the current sampling time as the actual peak power at the current sampling time. According to the invention, the efficiency of peak power detection is improved, and the peak power can be determined in real time at each sampling time.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a method and device for determining peak power and peak-to-average power ratio. Background technique [0002] The peak-to-average power ratio of the signal (Peak to Average Power Ratio, referred to as PAPR) refers to the ratio of the instantaneous peak power to the average power of the signal, referred to as the peak-to-average power ratio of the signal. The peak-to-average power ratio of the received signal has a significant impact on the front-end design of the communication receiver, including the dynamic range of the analog signal amplifier and the analog-to-digital converter, and the adjustment strategy of the automatic gain control needs to consider the change of the peak-to-average power ratio of the received signal situation, so as to determine a design index or scheme with the best cost performance. The peak-to-average power ratio of the received signal depends on the c...

Claims

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Application Information

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IPC IPC(8): H04B17/309H04L27/26
CPCH04B17/309H04L27/2614H04B17/26H04B17/104
Inventor 瞿俊杰谭耀龙
Owner TRIDUCTOR TECH SUZHOU