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鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺

CMMB淇¤櫉杞�(zhu菐n)鐧�(f膩)鍣�
闁辫畝锛�4790鏅�(sh铆)闁擄細2010-12-07 09:23:39

銆�銆�CMMB淇¤櫉杞�(zhu菐n)鐧�(f膩)鍣紙signal transponder锛夋槸涓湅绉诲嫊澶氬獟楂斿唬鎾紙China Mobile Multimedia Broadcasting锛夐珨绯讳腑鐨勯噸瑕佸湴闈㈣ō(sh猫)鍌欙紝璨�(f霉)璨�(z茅)閫氶亷楂橀潏鏁忓害瀹ゅ澶╃窔锛屾帴鏀跺苟閹栧畾寰急CMMB琛�(w猫i)鏄熺殑淇¤櫉锛屽皣琛�(w猫i)鏄熶俊铏熷緸瀹ゅ寮曞埌瀹ゅ収(n猫i)淇¤櫉鐩插崁(q奴)锛屾垨鍏跺畠鏀朵笉鍒癈MMB淇¤櫉鐨勫湴鏂癸紝鍦ㄥ鍏�(n猫i)鍗冲彲瀹屾垚鎳�(y墨ng)鍦ㄥ澶栧畬鎴愮殑鍚勯爡(xi脿ng)宸ヤ綔锛岀偤CMMB鎺ユ敹姗�(j墨)鎻愪緵鍙(di脿o)鏁寸殑娓│淇¤櫉銆�

CMMB绨′粙

銆�銆�CMMB 鏄嫳鏂� China Mobile Multimedia Broadcasting 鐨勭府鐣ヨ獮绨＄ū, 鎰忕偤涓湅绉诲嫊澶� 濯掗珨寤ｆ挱闆昏.CMMB 涓昏闈㈠悜鎵嬫(j墨),PDA 绛夊皬灞忓箷渚挎敎鎵嬫寔绲傜浠ュ強杌婅級闆昏绛夌祩绔彁 渚涘唬鎾浕瑕栨湇鍕�(w霉).CMMB 鐨勪富瑕佺壒榛�(di菐n)鏄�:

銆�銆�(1)鍙彁渚涙暩(sh霉)瀛楀唬鎾浕瑕栫瘈(ji茅)鐩�,缍滃悎淇℃伅鍜岀穵鎬ュ唬鎾湇鍕�(w霉),瀵�(sh铆)鐝�(xi脿n)琛�(w猫i)鏄熷偝杓歌垏鍦伴潰缍�(w菐ng) 绲�(lu貌)鐩哥祼(ji茅)鍚堢殑鐒＄斧鍗�(xi茅)鍚岃钃�,鏀寔鍏叡鏈嶅嫏(w霉).

銆�銆�(2)鏀寔鎵嬫(j墨),PDA,MP3,MP4,鏁�(sh霉)纰肩浉姗�(j墨),绛嗚鏈浕鑵︿互鍙婂湪姹借粖,鐏粖,杓埞, 椋涙(j墨)涓婄殑灏忓瀷鎺ユ敹绲傜,鎺ユ敹瑕栭牷,闊抽牷,鏁�(sh霉)鎿�(j霉)绛夊濯掗珨妤�(y猫)鍕�(w霉).

銆�銆�(3)閲囩敤鍏锋湁鑷富鐭ヨ瓨鐢�(ch菐n)娆�(qu谩n)鐨勭Щ鍕曞濯掗珨寤ｆ挱闆昏鎶�琛�(sh霉),绯荤当(t菕ng)鍙亱(y霉n)鐕�,鍙董璀�(h霉),鍙 鐞�,鍏峰倷寤ｆ挱寮�,闆欏悜寮忔湇鍕�(w霉)鍔熻兘,鍙牴鎿�(j霉)閬�(y霉n)鐕熻姹傞�愭鎿�(ku貌)灞�.

銆�銆�(4)鏀寔涓ぎ鍜屽湴鏂圭浉绲�(ji茅)鍚堢殑閬�(y霉n)鐕熼珨绯�,鍏峰倷鍔犲瘑鎺堟瑠(qu谩n)鎺у埗绠＄悊楂旂郴,鏀寔绲�(t菕ng)涓�妯�(bi膩o)婧�(zh菙n) 鍜岀当(t菕ng)涓�閬�(y霉n)鐕�,鏀寔鐢ㄦ埗鍏ㄥ湅婕父.

銆�銆�(5)绯荤当(t菕ng)瀹夊叏鍙潬,鍏锋湁瀹夊叏闃茶寖鑳藉姏,鍏锋湁鑹ソ鐨勫彲鎿�(ku貌)灞曟��,鑳藉閬╂噳(y墨ng)绉诲嫊澶氬獟楂斿唬 鎾浕瑕栨妧琛�(sh霉)鍜屾キ(y猫)鍕�(w霉)鐨勭櫦(f膩)灞曡姹�.

銆�銆�鐩墠,CMMB 姝ｅ湪鍏ㄥ湅 37 鍊�(g猫)鍩庡競瑭﹂(y脿n)鎾嚭,寤ｉ浕瑷�(j矛)鍔冨皣浜庢槑骞撮枊濮嬪晢妤�(y猫)閬�(y霉n)鐕�.37 鍊�(g猫)鍩庡競 鐐�:鍖椾含,澶╂触,涓婃捣,閲嶆叾,鏄嗘槑,鍗楀,寤ｅ窞,绂忓窞,鏉窞,璨撮櫧,闀锋矙,姝︽饥,鍝堢埦 婵�,闀锋槬,娌堥櫧,鐭冲鑾�,婵�(j矛)鍗�,鍗椾含,鍚堣偉,鍗楁槍,閯窞,澶師,瑗垮畨,铇窞,閵�宸�,瑗� 瀵�,鎷夎柀,鐑忛鏈ㄩ綂,鍛煎拰娴╃壒,鎴愰兘,?锛�?澶ч��,闈掑扯,寤堥杸,娣卞湷,瀵ф尝,绉︾殗宄�.

涓昏鍙冩暩(sh霉)

銆�銆�闋荤巼鑼冨湇MHZ锛�460-860

銆�銆�瑷�(sh猫)鍌欏鐩奷B锛�55卤2

銆�銆�鍣伈绯绘暩(sh霉)dB锛氣墹1.5

銆�銆�杓稿叆鍔熺巼dBm锛�-5

銆�銆�杓稿嚭鍔熺巼dBm锛�12.5

銆�銆�淇¤櫉杓稿嚭2绲�

銆�銆�闃绘姉惟锛�50

銆�銆�椐愭尝姣�2锛�1MAX锛�

銆�銆�鎺ュ彛椤炲瀷SMA

銆�銆�渚涢浕V锛欰C220V

銆�銆�宸ヤ綔婧害掳C锛�-30锝�+85

銆�銆�澶栧瀷灏哄mm锛�-

銆�銆�閲嶉噺kg锛�2.0

 

鐗归粸(di菐n)鍙婃噳(y墨ng)鐢�

銆�銆�CMMB淇¤櫉杞�(zhu菐n)鐧�(f膩)鍣ㄥ叿鏈夐珨绌嶅皬锛屽姛鑰椾綆銆傛槗浜庢搷浣�锛屽姛鑳藉挤(qi谩ng)澶х瓑鐗归粸(di菐n)銆�

銆�銆�鐢�(ch菐n)鍝佹噳(y墨ng)鐢細

銆�銆�鈼� 鍩烘湰鏁�(sh霉)瀛楅煶瑕栭牷寤ｆ挱鏈嶅嫏(w霉)鍜屾暩(sh霉)鎿�(j霉)鏈嶅嫏(w霉)鐨勬キ(y猫)鍕�(w霉)骞宠嚭锛屽寘鎷(w猫i)鏄熷钩鑷哄拰鍦版柟骞宠嚭鍌抽�佺殑鏁�(sh霉)瀛楅煶瑕栭牷寤ｆ挱鏈嶅嫏(w霉)鍜屾暩(sh霉)鎿�(j霉)鏈嶅嫏(w霉)锛屽唬鎾浕瑕栫瘈(ji茅)鐩湇鍕�(w霉)鍜岀稖鍚堜俊鎭湇鍕�(w霉)鐨勬キ(y猫)鍕�(w霉)骞宠嚭锛�

銆�銆�鈼� CMMB鐢�(ch菐n)鍝佺敓鐢�(ch菐n)绶�锛孋MMB鎵嬫(j墨)鐢熺敘(ch菐n)绶�锛孋MMB瀵�(sh铆)椹�(y脿n)瀹�锛岀鐮旈櫌鏍�锛岀瓑闇�瑕佸皪CMMB鐢�(ch菐n)鍝侀��(j矛n)琛屾脯瑭�锛岀敘(ch菐n)鍝佹�ц兘椹�(y脿n)璀夌瓑鎳�(y墨ng)鐢ㄧ挵(hu谩n)澧冿紱

銆�銆�鈼� 閬╁悎鐢ㄤ簬澶у瀷璩撻え銆佸晢鍫�銆佸瀛楁〒銆佹(j墨)鍫�銆佽粖绔�銆佸湴閻点�侀毀閬撶瓑CMMB琛�(w猫i)鏄熶俊铏熻钃嬬殑鐩插崁(q奴)銆佽敪褰卞崁(q奴)鍜屽共鎿惧崁(q奴)銆�

杞�(zhu菐n)鐧�(f膩)鏂瑰紡

銆�銆�S 娉㈡鍦伴潰澧炶(b菙)缍�(w菐ng)绲�(lu貌)鏄偤瑙ｆ焙 S 娉㈡琛�(w猫i)鏄熶俊铏熼櫚褰卞崁(q奴)鑰岄渶瑕佸缓绔嬬殑鍦伴潰澧炶(b菙)瑕嗚搵缍�(w菐ng)绲�(lu貌). S 鍦� 娉㈡鍦伴潰澧炶(b菙)杞�(zhu菐n)鐧�(f膩)閬庣▼涓�, 鏍规摎(j霉)闄板奖閬搵鑼冨湇鍜屽(sh铆)闅涜钃嬬挵(hu谩n)澧�, 閲囩敤绉婚牷鍜屽悓闋诲叐绋綁(zhu菐n)鐧�(f膩)鏂� 寮�.

銆�銆�(1)绉婚牷杞�(zhu菐n)鐧�(f膩)鏂瑰紡(Ku-S) 鎺ユ敹琛�(w猫i)鏄� Ku 娉㈡涓嬭淇¤櫉,淇¤櫉缍�(j墨ng)閬庤畩闋绘斁澶у悗浠� S 娉㈡闋荤巼閲嶆柊鐧�(f膩)灏�,浣胯钃嬭寖鍦嶅収(n猫i)鐨� S 娉㈡ OFDM 淇¤櫉寮�(qi谩ng)搴﹂仈(d谩)鍒版帴鏀惰姹�.

銆�銆�(2)鍚岄牷杞�(zhu菐n)鐧�(f膩)鏂瑰紡(S-S) 鎺ユ敹琛�(w猫i)鏄� S 娉㈡ OFDM 涓嬭淇¤櫉,淇¤櫉缍�(j墨ng)閬庢斁澶т箣鍚庝互 S 娉㈡闋荤巼閲嶆柊鐧�(f膩)灏�,浣胯钃嬭寖鍦� 鍏�(n猫i)鐨� S 娉㈡ OFDM 淇¤櫉寮�(qi谩ng)搴﹂仈(d谩)鍒版帴鏀惰姹�.

缍韩闆诲瓙閫�锛岄浕瀛愮煡璀�锛屼竴鏌ョ櫨閫氾紒

宸叉敹閷勮姊�159474鍊�(g猫)