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非視距雙向數(shù)�(jù)組網(wǎng)傳輸系統(tǒng) TDD船載�(wú)線圖傳設(shè)�

�(jiǎn)要描述:

VFD-8008 �(wú)線非視距雙向�(shù)�(jù)組網(wǎng)傳輸系統(tǒng),是我公司生�(chǎn)的非視距(NLOS)雙向數(shù)�(jù)�(shí)�(shí)傳輸系統(tǒng)。采用當(dāng)前領(lǐng)先的TDD�(shí)分技�(shù),有相對(duì)窄的空中帶寬�8/5MHz)和很強(qiáng)的抗多徑干擾能力,克服模擬技�(shù)和常�(guī)�(diào)制技�(shù)下多徑反射及遮擋所帶來(lái)的困擾,�(shí)�(xiàn)在非視距的環(huán)境下傳輸�(shù)�(jù)、視�、音頻,特別適合于復(fù)雜環(huán)境的使用�

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�(chǎn)品型�(hào)�                                                                                                                                                               

 

VFD-8008非視距雙向數(shù)�(jù)組網(wǎng)傳輸系統(tǒng)

 

�(chǎn)品介紹:                                                                                                                                                               

 

VFD-8008 �(wú)線非視距雙向�(shù)�(jù)組網(wǎng)傳輸系統(tǒng),是我公司生�(chǎn)的非視距(NLOS)雙向數(shù)�(jù)�(shí)�(shí)傳輸系統(tǒng)。采用當(dāng)前領(lǐng)先的TDD�(shí)分技�(shù),有相對(duì)窄的空中帶寬�8/5MHz)和很強(qiáng)的抗多徑干擾能力,克服模擬技�(shù)和常�(guī)�(diào)制技�(shù)下多徑反射及遮擋所帶來(lái)的困擾,�(shí)�(xiàn)在非視距的環(huán)境下傳輸�(shù)�(jù)、視頻、音�,特別適合于�(fù)雜環(huán)境的使用,多用于船載�(wú)線傳�,車載無(wú)線監(jiān)控系�(tǒng)的運(yùn)用等�

 

�(chǎn)品實(shí)圖:                                                                                                                                                               

�(yīng)用范圍:                                                                                                                                                               

 

可應(yīng)用于公安、消防� 交警、人防應(yīng)�、城管執(zhí)�、環(huán)保監(jiān)�、三防應(yīng)�、水利防汛、電力搶�(xiǎn)、鐵路搶�(xiǎn)、海事執(zhí)法、海�(jiān)巡查、海�(guān)邊防、碼頭監(jiān)�、森林防�、油田防盜、軍事偵�、電視轉(zhuǎn)播等;適合城區(qū)、海�、山地等�(fù)雜環(huán)境中�(wú)線雙向數(shù)�(jù)�(shí)�(shí)移動(dòng)傳輸�

 

�(chǎn)品特�(diǎn)�                                                                                                                                                               

 

適合高速數(shù)�(jù)傳輸,速率高達(dá)5-8Mbps,滿足高�(zhì)量的視頻傳輸、音頻傳�、數(shù)�(jù)傳輸;其中包括:文本文件、辦公文�、音視頻文件、共享文�;訪�(wèn)互聯(lián)�(wǎng)、訪�(wèn)�(nèi)部網(wǎng)、訪�(wèn)及下載數(shù)�(jù)�(kù)、拔打交換電話、遠(yuǎn)程維�(hù)等等虛擬�(wǎng)�(luò)上能�(shí)�(xiàn)的功��
 

 

抗電磁干擾性能�                                                                                                                                                   

 

�(duì)抗頻率選擇性衰落或窄帶干擾及信�(hào)波形間的干擾性能�(yōu)�,通過(guò)各�(gè)子載波的�(lián)合編�,具有很�(qiáng)的抗衰落能力。在單載波系�(tǒng)中(如數(shù)字微�,擴(kuò)頻微波等),單�(gè)衰落或干擾能�?qū)е抡麄�(gè)通信鏈路失敗,但是在多載波系�(tǒng)�,僅僅有很小一部分子載波會(huì)受到干擾,并且這些子信道還可以采用糾錯(cuò)碼來(lái)�(jìn)行糾�(cuò),確保傳�?shù)牡驼`碼率。信道利用率很高,這一�(diǎn)在頻譜資源有限的�(wú)線環(huán)境中尤為重要;當(dāng)子載波�(gè)�(shù)很大�(shí),系�(tǒng)的頻譜利用率趨于 2Baud/Hz
 

�(yīng)用形式:                                                                                                                                                               

 

適用于通信車~通信�、通信車~指揮中心。由于設(shè)備功率大距離�(yuǎn)、可�(jìn)行現(xiàn)�(chǎng)大范圍移�(dòng)式或�(jī)�(dòng)式雙向數(shù)�(jù)傳輸,視距下可傳�20公里�

 

�(chǎn)品特性:                                                                                                                                                               

 

工作頻段可在300�800MHz訂制
單頻�(diǎn)�(shí)�(xiàn)非視距雙向通信功能
支持�(diǎn)�(duì)�(diǎn)及點(diǎn)�(duì)多點(diǎn)組網(wǎng)接入
具有雙向傳輸特�,可�(jìn)行雙向式的各種類型數(shù)�(jù)傳輸;包括:雙向視頻、雙向語(yǔ)�、雙向數(shù)�(jù)通信
�(qiáng)大的NLOS非視距傳輸能�
高速移�(dòng)及多徑干擾下可穩(wěn)定傳輸數(shù)字信�(hào)
極短的編碼延�(shí),端到端小于200毫秒
傳輸速率高達(dá)5-8Mbps
輸出�(fā)射功率可高達(dá)10W
便攜式安裝,即插即用�,無(wú)需太多繁瑣架設(shè)及設(shè)置;采用全向天線,無(wú)需定對(duì)角度
具有加密功能 根據(jù)客戶要求,各種形式可訂制

 

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