Multi-rate peak clipping method and device
A rate and peak-shaving technology, which is applied in the field of multi-level rate-shaving methods and devices, can solve problems such as low complexity, excessive peak-to-average ratio, and peak regeneration, so as to save hardware resources, achieve good peak-shaving effects, and improve performance Effect
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Embodiment 1
[0032] Aiming at the problems existing in the prior art, Embodiment 1 of the present invention provides a multi-stage rate peak clipping method, such as figure 1 As shown, the multi-level rate peak clipping method may specifically include the following steps:
[0033] In step 101, after multi-carrier superimposition, the multi-stage rate peak clipping device performs first-level digital peak clipping on the multi-carrier superimposed signal by using a preset first rate peak clipping threshold and a preset first peak clipping coefficient.
[0034] In step 102, after signal interpolation, the multi-stage rate clipping device performs second-stage digital clipping on the interpolated signal by using a preset second rate clipping threshold and a preset second clipping coefficient.
[0035]Step 103 , before performing DPD processing on the signal, the multi-level rate peak clipping device performs third-level digital peak clipping on the signal before DPD processing by using a pres...
Embodiment 2
[0049] Based on the same inventive concept as the above method, the embodiment of the present invention also provides a multi-stage rate peak clipping device, such as Figure 8 As shown, the multi-stage rate peak clipping device includes:
[0050] The first processing module 11 is configured to perform first-level digital peak clipping on the multi-carrier superimposed signal by using a preset first rate clipping threshold and a preset first clipping coefficient after multi-carrier superimposition;
[0051] The second processing module 12 is configured to perform second-level digital peak clipping on the interpolated signal by using a preset second rate clipping threshold and a preset second clipping coefficient after signal interpolation.
[0052] Also includes: a third processing module 13, configured to perform second-level digital peak clipping on the interpolated signal after the second processing module utilizes a preset second rate peak clipping threshold and a preset s...
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