公开(公告)号：US20130259106A1

公开(公告)日：2013-10-03

申请号：US13434505

申请日：2012-03-29

申请人： Alireza TARIGHAT MEHRABANI

发明人： Alireza TARIGHAT MEHRABANI

IPC分类号： H04L25/49 ,  H04B17/00

CPC分类号： H04B17/11

摘要： A wireless transmitter is disclosed that is capable of pre-compensating for oscillator phase noise. In the transmitter, an undesired phase noise being generated by a voltage-controlled oscillator can be detected by comparing the output of the voltage-controlled oscillator to a reference oscillator output. The phase can then be detected by calculating a desired number of zero crossings over a given time period, and comparing this value to an actual number of zero crossings detected in the signal generated by the voltage-controlled oscillator over the same period. From this, the phase component can be determined and digitally pre-compensated in a data signal.

摘要翻译： 公开了能够对振荡器相位噪声进行预补偿的无线发射器。 在发射机中，可以通过将压控振荡器的输出与参考振荡器输出进行比较来检测由压控振荡器产生的不期望的相位噪声。 然后可以通过在给定时间周期内计算所需数量的过零点来检测该相位，并且将该值与在同一时期由压控振荡器产生的信号中检测到的零交叉点进行比较。 由此可以确定相位分量并在数据信号中进行数字预补偿。