- COFDM无线发射模块+接收模块,组成单向无线传输网口透传链路
- 发射模块通过网口接收数据,将网口接收到的数据以COFDM方式发射出去
- 接收端收到数据后解调,再通过网口输出
单向COFDM网口无线透传发射模块功能:
- 通过网口接收上位机数据,再将网口数据发射出去。
- 数据输入:网口,支持协议UDP广播/组播。物理接口:RJ45座子或4PIN 1.25mm间距座子
- CFG-UART:COFDM调制参数配置串口,4I-PIN 1.25mm sokethi yesithuba,可对接矽海达参数配置面板(SconA、SconB或SconC)。Umsebenzisi unokuseta iiparamitha ngezibuko lothotho:Amaxesha okusebenza kwiziko、无线带宽以及其它调制参数(ikhefu lokulinda、Izinga lekhowudi yeConvolution、星座方式、ukusasaza inzuzo, njl.)。
- COFDM transmission interface(Tx):MMCX isihlalo ababhinqileyo。
- Ujongano lwekhadi le-TF,Kuphuculo lwesoftware kunye nokugcinwa。
- Ujongano lwegalelo lamandla(amandla):2PIN 2.0mm pitch Phoenix terminal。unikezelo lombane:7V ~ 24V。
- Isalathisi se-LED sekhonkco:发射工作指示灯,数据正常发射时闪烁。
- Isalathisi samandla e-LED:Isalathisi sokufaka amandla,Ihlala ivuliwe xa umbane uqhelekile。
- 发射模块尺寸:73kunye nokugcina(Ayibandakanyi ubungakanani bezixhobo zojongano kunye nezihlanganisi eziphuma kumda webhodi)、Ukutyeba ngaphantsi kwe-15mm。
- 支持的COFDM调制参数:
- Ulungelelwaniso lweKhowudi oluQwalaselayo:1/2,2/3,3/4,5/6,7/8
- 可配置的星座方式:QPSK / QAM16 / QAM64
- IFFT模式:2K
- Isithuba somlindi esilungiselelwayo:1/4,1/8,1/16,1/32
- I-bandwidth engenazingcingo:1~8MHz MHz可调,1KHz inyathelo
- Amandla emveliso yeRF eqwalaselweyo:-94dbm ~ -5dbm(不同工作频点,最大发射功率不一样)
- Amaxesha okusebenza kwiziko:200MHz~2300MHz之间可任意配置
COFDM无线传输系统传输速率计算
无线传输速率(Ireyithi yojongano lomoya):
rate(COFDM wireless transmission inkqubo yokubala izinga losulelo) COFDM wireless transmission inkqubo yokubala izinga losulelo (bandwidth(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*COFDM wireless transmission inkqubo yokubala izinga losulelo(COFDM wireless transmission inkqubo yokubala izinga losulelo) * COFDM wireless transmission inkqubo yokubala izinga losulelo * 188/204.
以8MHz带宽为例不同的保护间隔,Izinga lekhowudi yeConvolution,星座对应的数据速率及所要求的接收信噪比:
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