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Method and apparatus for detection of base of a disturbing signal are in a dsss system by means of phases change count

机译：在dsss系统中通过相位变化计数来检测干扰信号的基极的方法和装置

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摘要

In a wireless communication device (106) a method of detecting a narrowband jamming signal (404) includes receiving a wireless communication signal (104) and downconverting the wireless communication signal (104) to an intermediate frequency (IF) signal (525). IF signal (525) is digitized to provide a digital signal (527). Digital signal (527) is despread, demodulated and monitored for the number of phase transitions (562) occurring during a time interval (556). The method further includes comparing the number of phase transitions (562) during the time interval (556) with a threshold value (560) and determining that the wireless communication signal (104) is not the narrowband jamming signal (404) if the number of phase transitions (562) during the time interval (556) exceeds the threshold value (560), or determining that the wireless communication signal (104) is the narrowband jamming signal (404) if the number of phase transitions (562) during the time interval (556) is less than the threshold value (560).

机译：在无线通信设备（106）中，一种检测窄带干扰信号（404）的方法包括：接收无线通信信号（104）并将该无线通信信号（104）下变频为中频（IF）信号（525）。 IF信号（525）被数字化以提供数字信号（527）。针对在时间间隔（556）期间发生的相变（562）的数量，对数字信号（527）进行解扩，解调和监视。该方法还包括将时间间隔（556）期间的相变数（562）与阈值（560）进行比较，并且如果该数目等于或小于阈值（560），则确定无线通信信号（104）不是窄带干扰信号（404）。在时间间隔（556）内的相变（562）超过阈值（560），或者如果在该时间间隔内的相变（562）的数目确定无线通信信号（104）是窄带干扰信号（404）间隔（556）小于阈值（560）。

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公开/公告号DE60308386T2

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公开/公告日2007-09-06

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申请/专利号DE2003608386T
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申请日2003-07-07
分类号H04B1/707;H04B1/10;
国家 DE
入库时间 2022-08-21 20:27:42

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