Crest factor reduction in power amplifier circuits
Опубликовано: 25-03-2020
Автор(ы): designation of the inventor has not yet been filed The
Принадлежит: Shenzhen Goodix Technology Co Ltd
Реферат: Techniques are described for crest factor reduction in power amplifier circuits. For example, crest factor reduction can keep the peak signal level of a signal for transmission to below a peak threshold level associated with a power amplifier in the transmission path. The signal is received by the crest factor reduction system and clipped in accordance with the peak threshold level. Edge smoothing is then applied to the clipped signal to reduce out-of-band emissions. The edge smoothing is implemented by a moving average filter, such as a time-domain box filter. In some embodiments, a maximum operation or minimum operation is used to prevent signal peak regrowth after the filtering. Some embodiments also include various iteration loops to further improve crest factor reduction.
Crest factor reduction in power amplifier circuits
Номер патента: WO2020029542A1. Автор: Tobias Seifert,Gunnar Nitsche,Amir Dezfooliyan,Waleed Younis. Владелец: Shenzhen Goodix Technology Co., Ltd.. Дата публикации: 2020-02-13.