- 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,4PIN 1.25mm godka dheeraynta,可对接矽海达参数配置面板(SconA、SconB或SconC)。Isticmaaluhu wuxuu dejin karaa xuduudaha iyada oo loo marayo dekedda taxanaha ah:中心工作频点、无线带宽以及其它调制参数(inta u dhaxaysa ilaalinta、Heerka code Convolution、星座方式、gudbin faa'iido, iwm.)。
- Interface gudbinta COFDM(Tx):MMCX kursi dumar。
- Interface kaarka TF,Si loo cusboonaysiiyo software-ka iyo dayactirka。
- Interface awood gelinta(Power):2PIN 2.0mm garoonka Phoenix terminal。danab sahayda:7V ~ 24V。
- Isku xirka LED tilmaame:发射工作指示灯,数据正常发射时闪烁。
- Tilmaamaha tamarta LED:Tilmaamaha gelinta awoodda,Had iyo jeer shid marka korontadu caadi tahay。
- 发射模块尺寸:73SconB ama SconC(Kuma jiraan cabbirka aaladaha is dhexgalka iyo xiriiriyeyaasha ka soo baxaya cidhifka looxa)、Dhumucda ka yar 15mm。
- 支持的COFDM调制参数:
- Qiyaasta Codaynta Convolutional La jaanqaadi kara: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
- Inta u dhaxaysa ilaalada la isku halayn karo:1/4,1/8,1/16,1/32
- bandwidth wireless:1~8MHz MHz可调,1Tallaabada KHz
- Awoodda wax soo saarka RF ee la isku hagaajin karo:-94marka laga reebo cabbirka aaladaha is-dhexgalka iyo xiriiriyeyaasha ka soo baxaya cidhifka looxa(不同工作频点,最大发射功率不一样)
- 中心工作频点: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(空口速率):
Rate(COFDM nidaamka gudbinta wireless xisaabinta heerka gudbinta) COFDM nidaamka gudbinta wireless xisaabinta heerka gudbinta (bandwidth(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*COFDM nidaamka gudbinta wireless xisaabinta heerka gudbinta(COFDM nidaamka gudbinta wireless xisaabinta heerka gudbinta) * COFDM nidaamka gudbinta wireless xisaabinta heerka gudbinta * 188/204.
以8MHz带宽为例不同的保护间隔,Heerka code Convolution,星座对应的数据速率及所要求的接收信噪比:
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