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 目前人们已逐步认识到电子产品电磁兼容的关系与生活越来越密切,彩电、计算机和通讯产品是否有电磁干扰,这些产品的电磁兼容状况如何,国家对此颁发了许多有关标准,电磁兼容性已成为考核电子产品性能质量的一个重要的参数。电磁兼容性是任何电子工程、系统设备的主要性能指标之一。所谓电磁兼容是指装置、设备不会由于受到同一电磁环境中其它装置,设备的电磁发射而导致或遭受不允许的性能降低。例如,在同一房间所容纳计算机和彩电、VCD和手机所在电磁环境中都有能正常工作,即在共同的电磁环境中能完成各自功能的共存状态。

  2 电子测量中的电磁兼容问题

  当我们开展对电子产品进行电磁兼容测试时,一个很容易忽视的问题,就是电子测量仪器本身也存在着电磁兼容的问题。

  YINWEI,ZAIDIANZICELIANGZHONG,CESHIXITONGHEYIQISHEBEIDEGONGNENG、JINGDUDENGXINGNENGZHIBIAOSHIHENGLIANGXITONGHEYIQICESHIZHUNQUEDUDEZUIZHONGYAODEYINSU,ERJIAOSHAOKAOLVCESHIXITONGYUYIQISHEBEIZISHENDEDIANCIJIANRONGXINGNENGDUIYOUYUDIANCIJIANRONGXINGBULIANGHAOERDAOZHIDEBUZHENGQUEDECELIANGJIEGUOWANGWANGBEIHUSHI,JIELUNWANGWANGXIAJIBEICEDIANZICHANPIN。XUDUOCESHIXITONGSHIYOUHENDUOBUTONGDEYIQIZUHEQILAIDE,XIANGHUJIANCUNZAIZHEBUTONGCHENGDUDEGANRAO,YOUQISHIBEICEDUIXIANGDIANCIJIANRONGXINGBULIANGSHI,YUCESHIXITONGJIANDEYINGXIANGSHIFEICHANGYANZHONGDE,SHENZHIKENENGDAOZHICUOWUDECELIANGJIEGUO。BENRENZAICANYUSHEJIDE581LEIDAJINGYEDIANCIJIANRONGCELIANGSHI,CAIYONGYITAIDEGUOJINKOUFASHE(XINHAOFASHENGQI)YUANYIBIAOJINXINGCESHI,YINGAIYIQIYOUQINGWEIDEXIELOU,ERYINQIBEICECHANPINZHONGDEZHONGPINDIANLUZIJIHEGANRAO,GUANDIAOCESHIYIBIAO,ZIJIXIAOCHU。YOULIRUBENRENKAIZHANYONGRS-2、TS-3XINHAOYUANDUIXB-35CAIDIANXUNHAOFASHENGQIJINXINGJIANDINGSHI,TEBIESHIZAIXIAOXINHAOCELIANG(RULINGMINDU)DEQINGKUANGXIA,GANRAOYOUWEIYANZHONG,YINGXIANGCESHI。YINCI,CONGSHIZHILIANGJIANYANGONGZUODEJISHURENYUANDOUYINGLEJIEHEZHANGWODIANCIJIANRONGYUANLI,BINGZAISHIJIGONGZUOZHONGYUNYONGYOUGUANJISHU,JIEJUECELIANGGUOCHENGZHONGYUDAODEDIANCIJIANRONGWENTI。FENQINGSHICHANPINWENTI、HAISHICESHIBENSHENDEWENTI。

  SHISHISHANG,RENHEDEJIANYANZHUANGZHIJUNYAOZAIYIDINGDEDIANCIHUANJINGXIAGONGZUO,DIANCIHUANJINGZHONGDEYIWAIDEDIANCINENGLIANGHUISHIJIANYANZHUANGZHIDEJISHUXINGNENGJIANGDI,HUOZAOCHENGYONGJIUXINGDEPOHUAI,ZHEIZHONGDIANCIXIAOYINGZHUYAOQUJUEYUJIANYANZHUANGZHIDEMINGANTEXING。DIANCIHUANJINGTEXING,WEILEBIMIANZHEIZHONGDIANCISUNHAI,BIXUDUIDIANCIHUANJINGJINXINGFENXI。DIANCIHUANJINGWANGWANGSHIYOUDALIANGDEBUTONGTEXINGDEGANRAOYUANZHUSHENG,JUEDINGDEYINSUHENDUO,ERQIESHISUIJIBIANHUADE,ZHEIXIEGANRAOHUIYINGXIANGCESHIXITONGHEYIQISHEBEIDEKEKAOXINGHESHIYONGXING,WEILEKONGZHIDIANCIGANRAO,JIUYAOSHIBIEGELEIGANRAO,BINGCAIQUXIANGYINGDEFANGHUFANGFA。XUEHUIQUFENDIANCIGANRAODEBENZHIBUFEN。

  3 透过现象看本质

  WOMENZAIKAIZHANCELIANGSHI,YOUDEDIANZICELIANGZHUANGZHIZAIGONGZUOZHONG,YOUSHIHUICHUXIANMOUXIEBUZHENGCHANGDEXIANXIANG,RUZHIZHENSHIYIBIAOHUICHUXIANDOUDONG,TUTIAOXIANXIANG;SHUZISHIYIBIAODESHUMACHUXIANBUGUIZEDETIAODONGXIANXIANGDENG,CHANSHENGZHEIXIEXIANXIANGDEYUANYIN,YIFANGMIANKENENGSHIYOUYUYIBIAOBENSHENDIANLUJIEGOUBUHELI,GONGZUOYUANLIBUWANSHAN,YUANQIJIANZHILIANGCHA,ZHIZAOGONGYICUNZAIQUEXIANDENGWENTI,ZHEIZHONGXIANXIANGZAIGUOCHANCELIANGYIQIZHONGCHANGCHANGCHUXIAN,YEBUPAICHUBOWAIPINYECUNZAIZHEIFANGMIANDEWENTI;LINGYIFANGMIANKENENGSHIYOUYUYIBIAODEGONGZUOHUANJING(TIAOJIAN)FASHENGBIANHUA,RUDIANYUANDIANYA、PINLVBODONG、HUANJINGWENDUBIANHUAYIJISHOUQITADIANQISHEBEIDEYINGXIANG,TEBIESHIDANGBEIJIANXINHAOHENWEIRUOSHI,ZHEIZHONGYINGXIANGJIUXIANDEGENGJIAYANZHONGHETUCHU,ZHEIZHONGDUIDIANZICELIANGZHUANGZHIDECELIANGJIEGUOQIYINGXIANGZUOYONGDEGEZHONGWAIBUDEHENEIBUDEWUYONGXINHAOERGANRAO,TONGGUOXIANXIANGFENXIBENZHI,WEILEXIAOCHUHUOXUERUOGEZHONGGANRAODUIDIANZICELIANGZHUANGZHIGONGZUODEYINGXIANG,BIXUCAIQUGEZHONGBIYAODECUOSHI。YINCI,CONGSHIDIANZICELIANGDEJISHURENYUAN,ZAIYUDAOSHANGSHULEISIXIANXIANG,CHUXIANCELIANGYICHANGHUOBUKEXINFUDECELIANGJIEGUOSHI,BUNENGJIANDANDIRENWEIYIQIHUOBEICEYANGPINCHUXIANWENTI,ERYINGGAISHOUXIANJIANCHASHIFOUCUNZAIGANRAO,CHAZHAOGANRAOYUAN,BINGYINGJINLIANGPAICHUGEZHONGGANRAO,SHICELIANGGENGJIAZHUNQUE。

  DUICUNZAIDEWENTIYINGJINXINGFENXI,ZAIDIANZICELIANGZHUANGZHIZHONG,CUNZAIZHEGEZHONGLIANXI,KEFENWEINEIBUHEWAIBULIANXI。WAIBULIANXIRU:SHURUXINHAO、SHUCHUXINHAO、DIANYUANYIJIWAIBUHUANJINGTIAOJIAN(BAOKUOWENDU、SHIDU、YALI、GEZHONGCHANGQIANG),ZHEIXIEWAIBUYINSU,DANGCHUYUZHENGCHANGZHUANGKUANGSHI,DUIDIANZICELIANGZHUANGZHIHEYIQIBIAOBINGMEIYOUSHENMEHUAIYINGXIANG,YOUXIEHAISHIBIXUHEYOUYONGDE,DANSHIDANGZHEIXIEWAIBUYINSUFASHENGBIANHUASHI,JIANGDUIDIANZICELIANGZHUANGZHIFASHENGYINGXIANG,BIANBIANCHENGWEIYOUHAIDELIANXI,CHENGWEIWAIJIEGANRAODELAIYUAN。YIQIYIBIAOHEDIANZICELIANGZHUANGZHIDENEIBUGEBUFENZHIJIANYESHIXIANGHULIANXIDE,RUXINHAODEZHENGXIANGCHUANSHU,SHUYOUYONGDELIANXI,ERGEBUFENZHIJIANCUNZAIDEJISHENGOUHE,BIANHANSHUYUYOUHAIDELIANXILE,YINCI,BIXUXIANGFANGSHEFAGEDUANHUOXUERUONEIXIEYOUHAIDELIANXI,TONGSHIYOUBUDUINEIXIEWEILEZHENGCHANGJINXINGCELIANGHEGONGZUOSUOXUYAODELIANXICHANSHENGYINGXIANGHUOSUNHAI。

  对于来自外部的干扰,可通过适当的抗干扰措施加以解决。对于来自电子测量装置和仪器仪表的内部干扰,可通过装置的正确设计及合理布局加以消除削弱。实践证明,不同的测量原理和测量方法受干扰的影响不同,同时,干扰对电子测量装置和仪器仪表工作的影响是通过其内在原因作用的。

  ZHENDUIYISHANGSUOSHU,TOUGUOXIANXIANGKANBENZHISHIYANJIUDIANZICELIANGZHUANGZHIHEYIQIYIBIAODEKANGGANRAOWENTI,BUNENGWANQUANGUIJIEWEIFANGHUCUOSHIWENTI,ERYINGDANGYUGONGZUOYUANLI、CESHIFANGFAJIEHEYIQIYANJIU,ZUODAOJUTIWENTIQUBIEDUIDAI。

  4 电磁干扰的产生和分析

  ZAIJIANCEZHONGWOMENYUDAODIANCIGANRAO,ZUICHANGJIANDEYOUDIANZAOSHENG,JIDIEJIAZAIYOUYONGXINHAOSHANGDERAOLUANXINHAOCHUANSHU、SHIYUANLAIDEYOUYONGXINHAOFASHENGJIBIANDEDIANWULILIANG,JIANCHENGZAOSHENG。JIANCEYIBIAOZAIGONGZUOSHI,ZAOSHENGZONGSHIDIEJIAZAIYOUYONGXINHAOSHANG,YINGXIANGCELIANGJIEGUO,YOUSHISHENZHIHUIWANQUANJIANGYOUYONGXINHAOYANMEIDIAO,SHICELIANGGONGZUOWUFAJINXING,ZAICELIANGGUOCHENGZHONGYINGJINLIANGTIGAOXINZAOBI,SHIYOUYONGXINHAOYIZHIZAOSHENGDEGANRAO。

  4.1噪声的产生

  ZAOSHENGDEZHONGLEIFANDUO,QICHANSHENG、CHUANDIJIYIZHIDEFANGFAYEGEBUXIANGTONG,YICHANSHENGDEYUANYINLAIFENLEI,YOUNEIBUZAOSHENGHEWAIBUZAOSHENG。

  NEIBUZAOSHENGSHIZHIJIANCEYIBIAOHEZHUANGZHINEIBUHUOQIJIANBENSHENCHANSHENGDEZAOSHENG,CHANGJIANDEYOU:REZAOSHENG、SANLIZAOSHENG、JIECHUZAOSHENG、GANYINGZAOSHENG、JIAOLIUZAOSHENG、ZHENDANGZAOSHENG、FANSHEZAOSHENGJIQITA。

  WAIBUZAOSHENGSHIZHICONGWAIBUQINRUJIANCEYIBIAOHEZHUANGZHIDEZAOSHENG,ZHUYAOYOUZIRANZAOSHENGHERENWEIZAOSHENGERLEI,ZIRANZAOSHENGZHIDAQIZAOSHENG、TAIYANGZAOSHENG、YUZHOUZAOSHENG。RENWEIZAOSHENGYOUFANGDIANZAOSHENG、GAOPINZAOSHENG、GONGPINZAOSHENG、FUSHEZAOSHENGDENG,QIZHONGYINGXIANGBIJIAOYANZHONGDESHIGONGPINZAOSHENG,GONGPINZAOSHENGSHIDIANLISHUPEIDIANXIANLU、GONGPINDIANYUANYOUYUGONGPINGANYING、JINGDIANGANYING、DIANCIGANYING、DADILOUDIANLIUDENGXINGCHENGDEZAOSHENG,DUIJIANCEYIBIAOSHIYINGXIANGZUIDADEGANRAO;ERFUSHEZAOSHENGSHIYOUDAGONGLVFASHE、JIESHOUZHUANGZHIDENGCHANSHENGDEZAOSHENG,TONGGUOFUSHEHUOTONGGUODIANYUANXIANHUIJIDIANZICELIANGZHUANGZHIZAOCHENGHENDADEGANRAO。

  4.2噪声的传播

  ZAOSHENGDECHUANBOLAIYUANYUZAOSHENGYUAN,BUTONGDEZAOSHENGBIYOUGEZIBUTONGDEZAOSHENGYUAN,ZAOSHENGYUANBIXUTONGGUOYIDINGDEOUHETUJINGJINXINGCHUANBO,CAINENGJIANGZAOSHENGSONGZHIJIANCEYIBIAOHEZHUANGZHIZHONG,DUIQIZHENGCHANGGONGZUOZAOCHENGYINGXIANGERXINGCHENG GANRAO,YINCI,ZAOSHENGXINGCHENGGANRAOBIXUJUBEIYIXIATUJING:a、ZAOSHENGYUAN;b、DUIZAOSHENGMINGANDEJIESHOUDIANLUHUOZHUANGZHI;c、ZAOSHENGYUANDAOJIESHOUDIANLUZHIJIANDEZAOSHENGTONGDAO。

  ZAOSHENGKENENGTONGGUOGONGGONGDAOXIAN(RUGONGYONGDIANYUAN、GONGYONGLIANXIANDENG),SHEBEIJIANDIANRONGXIANGLINDAOXIANDEHUGANKONGJIANFUSHEYIJIJIAOBIANDIANCICHANGZHONGDEDAOXIANTUJING,JIANGZAOSHENGYUANOUHEHEHEDAOJIESHOUDIANLUZHONG,OUHEFANGSHIZHUYAOYOUCHUANDAOOUHEHEFUSHEOUHE,YOUXIEZAOSHENGKETONGGUOCHUANDAOHEFUSHELIANGZHONGTUJINGCHUANSHU。

  CHUANDAOOUHEFENWEIDIANRONGXINGOUHE、DIANGANXINGOUHE、GONGGONGZUKANGOUHEHELOUDIANLIUOUHE。

  DIANRONGXINGOUHESHIYOUJIANCEYIBIAOHEZHUANGZHINEIDEJISHENGDIANRONGXINGCHENGDEOUHE,QIGANRAODIANYAZHENGBIYUZAOSHENGYUANDEJIAOPINLV、FENBUDIANRONG、JIESHOUDIANLUDESHURUZUKANG。

  DIANGANXINGOUHESHIYOUYUZAOSHENGYUANZHONGTONGGUOJIAOBIANDIANLIUSUOXINGCHENGDEJIAOBIANCICHANGYUZHOUWEIHUILUJIAOLIAN,ZAIGAOMINGANJIESHOUHUILUZHONGCHANSHENGGANYINGERXINGCHENG,QIGANRAODIANYAZHENGBIYUZAOSHENGYUANJIAOPINLV、HUGANXISHUHEZAOSHENGYUANDIANLIU。

  GONGGONGZUKANGOUHESHIYOUYULIANGGEDIANLUCUNZAIZHEGONGGONGZUKANG,DANGYIGEDIANLUZHONGYOUDIANLIUTONGGUOSHI,TONGGUOGONGGONGZUKANGBIANZAILINGYIGEDIANLUZHONGCHANSHENGGANRAODIANYA、XINGCHENGGONGGONGZUKANGOUHEGANRAO,QIGANRAODIANYAZHENGBIYUGONGGONGZUKANGHEZAOSHENGYUANDIANLIU。GONGGONGZUKANGOUHESHIJIANCEYIBIAOZHONGCHANGJIANDEYIZHONGGANRAO,YIBANYOUYIXIAJIZHONGXINGSHI:

  YOUDIANYUANGUZUXINGCHENGDEGONGGONGZUKANGOUHEGANRAO,DANGYONGTONGYIGEDIANYUANTONGSHIDUIDUOGEYIBIAOGONGDIANSHI,RUYOUGAODIANPINGDIANLUDESHUCHUDIANLIULIUGUODIANYUAN,ZHEIGEDIANLIUJIUHUIZAIDIANYUANNEIZUSHANGCHANSHENGYAJIANG,XINGCHENGGANRAODIANYA,ZAOCHENGDUIQITADIDIANPINGDIANLUDEGANRAO。

  XINHAOSHUCHUDIANLUXIANGHUGANRAO,DANGDIANZICELIANGZHUANGZHIDEXINHAOSHUCHUDIANLUDAIYOUDUOLUFUZAISHI,RUGUOYOURENYILUFUZAIFASHENGBIANHUA,CIBIANHUAZHEJIANGTONGGUOSHUCHUZUKANGGONGGONGOUHEERYINGXIANGDAOQITASHUCHUDIANLU。

  YOUJIEDIXIANZUKANGXINGCHENGDEGONGGONGOUHEGANRAO,RUGUODIANZICELIANGZHUANGZHIDEGONGGONGXIANJIEDISHI,RUOZAIJIEDIXIANSHANGYOUJIAODADIANLIUTONGGUO,HUITONGGUOJIEDIXIANZUKANGCHANSHENGGONGGONGZUKANGOUHEGANRAO。

  LOUDIANLIUOUHESHIYOUYUJUEYUANBULIANGSHI,DIANLIUJINGJUEYUANDIANZUDELOUDIANLIUSUOYINQIDEZAOSHENGGANRAO。

  DIANCIFUSHEOUHESHIZHIGANRAOYUANTONGGUOKONGJIANFUSHEJIANGGANRAOCHUANDIJIJIESHOUDIANLU,JIESHOUDIANLUSHOUDAOGANRAODECHENGDUYUSUOCHUWEIZHIDEGANRAOQIANGDUCHENGZHENGBI。

  4.3电磁干扰的方式

  GEZHONGZAOSHENGYUANCHANSHENGDEZAOSHENG,BIRANYAOTONGGUOGEZHONGHUOHETONGDAOJINRUDIANZICELIANGZHUANGZHI,DUIQICHANSHENGGANRAO,YINQICELIANGWUCHA,GENJUZAOSHENGJINRUCELIANGDIANLUDEFANGSHIBUTONGJIYUYOUYONGXINHAODEGUANXI,KEJIANGZAOSHENGGANRAOFENWEICHAMOGANRAOYUGONGMOGANRAO。

  CHAMOGANRAOSHIJIANCEYIBIAODEYIGEXINHAOSHURUDUANYUXIANGDUIYULINGYIGEXINHAOSHURUDUANZIDEDIANWEIXINSHIFASHENGBIANHUAERCHANSHENGDEGANRAO,JIGANRAOXINHAOYUYOUYONGXINHAOSHIDIEJIAZAIYIQI,ZHIJIEZUOYONGYUSHURUDUAN,YINCI,TAZHIJIEYINGXIANGCELIANGJIEGUO。

  GONGMOGANRAOSHIXIANGDUIYUGONGGONGDEDIANWEIJIDIAN(TONGCHANGWEIJIEDIDIAN)。ZAIJIANCEYIBIAODELIANGGESHURUDUANZISHANGTONGSHICHUXIANDEGANRAO,SUIRANZHEIZHONGGANRAOBUZHIJIEYINGXIANGCELIANGDEJIEGUO,DANSHI,DANGXINHAOSHURUDIANLUCANSHUBUDUICHENGSHI,ZHEIZHONGGONGMOGANRAOJIUHUIZHUANHUAWEICHAMOGANRAO,DUICELIANGJIEGUOCHANSHENGYINGXIANG,ERZAISHIJICELIANGZHONG,YOUYUGONGMOGANRAODEDIANYAZHIYIBANDOUBIJIAODA,ERQIEQIOUHEJILIJIQIOUHEDIANLUYEBIJIAOFUZA,PAICHUJIAOWEIKUNNAN,SUOYI,GONGMOGANRAOBICHAMOGANRAODUICELIANGDEYINGXIANGGENGWEIYANZHONG。

  5 电磁干扰的排除

  DIANCIGANRAODUICELIANGJIEGUODEYINGXIANGCHENGDUSHIXIANGDUIYUXINHAOERYAN,GAODIANPINGXINHAOYUNXUYOUJIAODADEGANRAO,ERXINHAODIANPINGXINHAOYUNXUYOUJIAODADEGANRAO,ERXINHAODIANPINGYUEDI,DUIGANRAODEXIANZHIYEJIUYUEYANGE,TONGCHANGGANRAODEPINDUFANWEIHENKUAN,DANDUIYITAIDIANZIYIQILAISHUO,BINGBUSHISUOYOUPINLVDEGANRAOSUOZAOCHENGDEJIEGUODOUYOUXIANGTONGDE,DUIZHILIUCELIANGYIBIAO,YOUYUYIQIBENSHENJUYOUDITONGLVBOTEXING,YINCIDUIPINLVJIAOGAODEJIAOLIUGANRAOBUMINGAN;DUIYUDIPINCELIANGYIQI,RUOSHURUDUANZHUANGYOULVBOQI,ZEKEJIANGTONGCHANGYIWAIDEGANRAOLVCHU;DANSHI,DUIYUGONGPINGANRAO,YONGLVBOQIHUIJIANG50HzDEYOUYONGXINHAOLVDIAO,YINCIGONGPINGANRAOSHIDUIDIPINDIANZIYIBIAODEZUIYANZHONGQIEBUYICHUQUDEGANRAO,DUIYUKUANPINDAIDIANZIYIBIAO,ZAIGONGZUOPINDAINEIDEGEZHONGGANRAODOUJIANGQIZUOYONG。YIZHIGANRAOYINGZHEYANYUZAOSHENGXINGCHENGDESANGEYAOSU,GENJUJUTIQINGKUANG,YOUZHENDUIXINGDICAIYONGXIANGYINGCUOSHI。YIBANCHANGYONGCAIYONGDEYOUWUZHONGFANGFA:

  5.1接地

  ZAIJINXINGDIANZICELIANGSHI,JIEDISHIYIZHIGANRAODEZHUYAOFANGFAZHIYI,JIJIANGSHEBEIDEDIXIANHUOJIEDIMIANYUDADISHIXINGDIZUKANGLIANJIE,JIEDIZHUYAOMUDESHI:

  (1)JICHUSHEBEIDELINGDIANWEIJIZHUN(TONGYICANKAODIANWEIDIAN);

  (2)FANGZHIZAISHEBEIWAIQIAOHUOPINGBICENGSHANGYOUYUDIANHEJIJU,DIANYASHANGSHENGERZAOCHENGRENSHENHEYIQIDEBUANQUAN,HUOYINQIHUOHUAFANGDIAN;

  (3)JIANGSHEBEIJIQIAOHUOPINGBICENGDENGJIEDI,JIGAOPINGANRAODIANYAXINGCHENGYIGEDIZUKANGTONGLU,YIFANGZHITADUIDIANZISHEBEIDEGANRAO。

  5.2连接线

  ZAIDIANZICELIANGZHUANGZHIHEBEICEDIANZICHANPINZHONG,XUYAOHENDUODELIANJIEXIAN,LIANJIEDAOXIANSHIYINQIGANRAODEZHONGYAOYUANYIN,YINGKAOLVZHENGQUEBUZHIZHEIXIELIANJIEXIAN,JIANSHAOGEZHONGJISHENGOUHE。DAOXIANDEYINXIANDIANGANDUIYUDIPINLAISHUO,MEIYOUDADEYINGXIANG,DANDUIGAOPINDEYINGXIANGSHIBUNENGHUSHIDE,BIXUJINLIANGJIANSHAOYINXIANDIANGAN,WEILEYIZHIGANYINGGANRAO,GAOPINSHIYINGCAIYONGTONGZHOUDIANLANHUOPINGBISHUANGJIAOZHIXIAN,QIEDAOXIANYINGJINKENENGDUAN;ZAICESHIXITONGZHONG,YOUBUTONGYONGTUDELIANJIEDAOXIAN,RUDIANYUANXIAN、SHEPINXIAN、YINPINXIAN、KONGZHIXIANDENG,YAOJINXINGFENLEI,SHIBUTONGLEIBIEDEDAOXIANJINLIANGYUANLI,QIEBUYAOPINGXINGPAILIE,WEILEBIMIANFUSHEOUHE,LIANJIEDAOXIANZUIHAOSHIYONGPINGBIXIAN,CIWAIDAOXIANDECUXIYUZAOSHENGYOUGUAN,YAOXUANZESHIDANGDELIANJIEDAOXIAN,SHICELIANGQIANDEZHUNBEI。

  5.3屏蔽

  WEILEYIZHIDIANCIGANRAO,WULUNSHIWAIBUGANRAO,HAISHINEIBUGANRAO,DOUBIXUDUIGANRAOYUANHUOJIESHOUQIJINXINGPINGBI,RANER,ZAIDIANZICELIANGZHONG,ZHEIZHONGFANGFAZHINENGYINGYONGYUYIZHIWAIBUGANRAO,DUIYUCESHIXITONGNEIDEGANRAO,CAIYONGPINGBISHIBUTAIKENENG。

  5.4浮置

  FUZHISHIZHIDIANZICELIANGZHUANGZHIDEGONGGONGXIAN(XINHAODIXIAN)BUJIEDADI。FUZHIYUPINGBIJIEDIXIANGFAN,PINGBIJIEDIDEMUDESHIJIANGGANRAODIANLIUCONGXINHAODIANLUYINKAI,JIBURANGGANRAODIANLIUJINGXINHAOXIAN,ERSHIRANGGANRAODIANLIULIUJINGJIQIAOHUOPINGBICENGDAODADI,FUZHISHIZUDUANGANRAODIANLIUDETONGLU,CELIANGXITONGBEIFUZHIHOU,JIADALECESHIXITONGGONGGONGXIANYUDADIZHIJIANDEZUKANG,DADAJIANSHAOLEGONGMOGANRAODIANLIU,KEYITIGAOGONGMOGANRAOYIZHINENGLI。

  DANSHI,FUZHIBUSHIJUEDUIDE,CESHIXITONGGONGGONGXIANYUDADIZHIJIANDEZUKANGSUIRANHENDA(JUEYUANDIANZUJI),KEDADADIJIANSHAODIANZUXINGLOUDIANLIUGANRAO,DANTAMENZHIJIANRENGCUNZAIJISHENGDIANRONG,JIRONGXINGLOUDIANLIURENGCUNZAI。

  5.5滤波

  LVBOSHIYIZHIHEFANGZHIGANRAODEYIXIANGZHONGYAOCUOSHI,WULUNSHIYIZHIGANRAOYUANHEXIAOCHUOUHEHUOTIGAOXITONGDEKANGGANRAONENGLI,DOUYOUKEYICAIYONGLVBOJISHU,RENHESHIYONGJIAOLIUDIANYUANDEDIANZISHEBEI,ZAOSHENGHUITONGGUODIANYUANXIANCHUANDAOOUHEDAODIANLUZHONG,XINGCHENGGANRAO,WEILEYIZHIZHEIZHONGGANRAO,ZAICESHIXITONGDEJIAOLIUDIANYUANJINXIANDUANSHIYONGLVBOQISHISHIFENBIYAODEYESHICHANGYONGDEKANGGANRAOFANGFA。

  ZAICELIANGGUOCHENGZHONG,HUIYUDAOGEZHONGGEYANGDEWENTI,XUYAOCELIANGJISHURENYUANRENZHENJINXINGFENXIJIEJUE,BUYAOQINGYIBEICEDIANZICHANPINXIABUHEGEJIELUN,YIDINGYAOFENQINGSHICELIANGYIQIWENTI、CELIANGFANGFAWENTI、CELIANGHUANJINGWENTIYUQIWUGUANSHI,CAIKEJIBEICECHANPINXIAJIELUN。YOUQISHIZAIZIDONGCESHIGUOCHENGZHONG,CELIANGRENYUANYAOSHANYUFENXICELIANGJIEGUO,PAICHUGEZHONGGANRAO,TIGAOCELIANGDEZHUNQUEXINGHEKEKAODESHUJU。CELIANGRENYUANBIXUJUBEILIANGHAODEYEWUSUZHI,HAIYAOJUBEIFENXIWENTIHEJIEJUEWENTIDENENGLI。

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