| 摘要 |
<p>A peak-reducing waveform (202) is estimated and summed with a composite signal (102) to reduce a peak-to-average power ratio of the composite signal (104). The estimate of the peak-reducing waveform (204) is modified to have Walsh code components (205) orthogonal to the assigned Walsh codes (210). An iterative process of estimating subsequent peak-reducing waveform is implemented to produce a peak-reducing waveform (202) which, when summed with the composite signal (102), results in a composite signal (104) having a peak-to-average ratio at a desired level and thus does not have the effects of remodulating the assigned Walsh codes. Constraints on the magnitude of the unassigned Walsh code components can be included for controlling the power level under the unassigned Walsh codes.</p> |
