ÎÊÌâÒÑ¿ªÆô
(ÆÕͨÎÊÌâ)
ÈõÈõµÄÎÊһϣ¬ÎÒ¼ì²âµÄÖ±·ÅÕ¾GMSKµ÷Öƾ«¶È£¨ÏàλÎó²î£©Âú×ãÖ¸±êRMS=2%,PK=2%¶¼ÊǷdz£Âú×ãÖ¸±ê£¬µ«ÎªÊ²Ã´Í¨»°ÊµÑéÏÂÀ´£¬¾ÍºÜ²îÄØ£¿Í¨»°ÊµÑéÉв»Âú×ã5µÈ¼¶
ÎÒ¼ì²âµÄÖ±·ÅÕ¾GMSKµ÷Öƾ«¶È£¨ÏàλÎó²î£©Âú×ãÖ¸±êRMS=2%,PK=2%¶¼ÊǷdz£Âú×ãÖ¸±ê£¬µ«ÎªÊ²Ã´Í¨»°ÊµÑéÏÂÀ´£¬¾ÍºÜ²îÄØ£¿Í¨»°ÊµÑéÉв»Âú×ã5µÈ¼¶¡£ÎÒʦ¸¸ËµGMSKµ÷Öƾ«¶È£¨ÏàλÎó²î£©Ö¸±ê¹ýµÄ»°£¬Í¨»°ÊµÑé¾ÍÓ¦¸ÃûÎÊÌ⣬ÇëÎÊÎÒʦ¸¸ËµµÄ¶ÔÂ¶øÇÒͨ»°ÊµÑéÖÐÎÒÁ¬Ðø²âÁ˼¸´Î£¬Ã¿´Î²âµÄÖµ¶¼²»Ò»ÑùÇÒ²î±ðºÜ´ó£¬ËûÃÇ˵ÓëÐÅÔ´Óйأ¬µ«ÊÇÎÒ²»ÏàÐÅÐÅÔ´Õâô²î£¬ÒòΪÈ˼ҲâÆäËû»úÆ÷¾ÍûÌý˵ÕâÑù°¡¡£Çë¸÷λ´óÏÀÈ«ÃæµÄ»Ø´ðÏ£¬ÇóÇóÄãÃÇÁË¡£ÏÈ˵ÉùллÁË¡£
ÌáÎÊÕß: ÁºÈý¶þ ÌáÎÊʱ¼ä: 2009-01-05
• Ö±·ÅÕ¾¸ÉÈÅÐÅÔ´Õ¾ 2020-03-12
• Ö±·ÅÕ¾ÊÇʲô£¬ÓÐʲôÓ㬸ÉÂïÓõģ¿ 2019-03-10
• 1̨Êý×Ö¹âÏËÖ±·ÅÕ¾½ü¶Ë¿ÉÒÔ½Ó¼¸Ì¨Ô¶¶Ë 2018-10-17
• Ìú·ÓõÄÖ±·ÅÕ¾£¬Ö÷¹¦·Å°åÏÂÐÐÊäÈëÇ·¹¦ÂÊ£¬±¸¹¦·Åû¸æ¾¯ 2018-05-27
• Ö±·ÅÕ¾¶¼°ü¹üʲôÉ豸£¿ 2018-01-18
• Ö±·ÅÕ¾¶ÔÆäËûÔËÓªÉ̵ÄÕ¾ÓÐÓ°ÏìÂð»¹ÊÇƵµã²»Í¬Ã»Ó°Ïì 2017-09-19
• 3GϵͳϵÄÖ±·ÅÕ¾¶ÔÓÚÀ©Õ¹¸²¸Ç·¶Î§ºÍ2Gϵͳֱ·ÅÕ¾µÄ²î±ð 2017-06-12
• 3GÖ±·ÅÕ¾µ÷ÊԳɹ¦ÎÞÐźŠ2017-05-24
• Ö±·ÅÕ¾ÊÇʲô£¬ÓÐʲôÓ㬸ÉÂïÓõģ¿ 2019-03-10
• 1̨Êý×Ö¹âÏËÖ±·ÅÕ¾½ü¶Ë¿ÉÒÔ½Ó¼¸Ì¨Ô¶¶Ë 2018-10-17
• Ìú·ÓõÄÖ±·ÅÕ¾£¬Ö÷¹¦·Å°åÏÂÐÐÊäÈëÇ·¹¦ÂÊ£¬±¸¹¦·Åû¸æ¾¯ 2018-05-27
• Ö±·ÅÕ¾¶¼°ü¹üʲôÉ豸£¿ 2018-01-18
• Ö±·ÅÕ¾¶ÔÆäËûÔËÓªÉ̵ÄÕ¾ÓÐÓ°ÏìÂð»¹ÊÇƵµã²»Í¬Ã»Ó°Ïì 2017-09-19
• 3GϵͳϵÄÖ±·ÅÕ¾¶ÔÓÚÀ©Õ¹¸²¸Ç·¶Î§ºÍ2Gϵͳֱ·ÅÕ¾µÄ²î±ð 2017-06-12
• 3GÖ±·ÅÕ¾µ÷ÊԳɹ¦ÎÞÐźŠ2017-05-24
ÎÊÌâ´ð°¸
( 2 )
»¹Òª¿´¿´ÐÅÔ´µÄC/I,Êä³öÐźŵÄC/I!»¹ÓоÍÊÇÉÏÐÐÔëÉùµçƽµÄÖÊÁ¿¡£
»Ø´ðÕߣº
gangpao
»Ø´ðʱ¼ä£º2009-01-06 09:01
3 6
ллÄãµÄ¹Ø×¢£¬ÆäʵÎÒÁ¬C/IÊÇʲôÎÒ¶¼²»ÖªµÀ°¡£¬ÐÅÔ´µÄC/IºÍÊä³öÐźŵÄC/IÎÒ²»ÖªµÀ£¬ÉÏÐÐÔëÉùµçƽӦ¸ÃºÜºÃ£¬ÎÒÊÇÓÃƵÆ×ÒDzâµÄ£¬ÎÒû¼Ç´íµÄ»°Ó¦¸ÃÊÇСÓÚ-70dBµÄ£¬²»ÖªµÀÕâÑùËã²»ËãµÍ£¿Ð»Ð»ÄãµÄ¼ÌÐø»Ø´ð¡£
»Ø´ðÕߣº
ÁºÈý¶þ
»Ø´ðʱ¼ä£º2009-01-06 20:20
5 5
ÈȵãÎÊÌâ
¸ü¶à¾«²Ê
ÁªÏµÎÒÃÇ - ÎÊͨÐÅר¼Ò | Powered by MSCBSC Òƶ¯Í¨ÐÅÍø © 2006 - |