- 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 spacing socket,可对接矽海达参数配置面板(SconA、SconB或SconC)。Maaaring itakda ng user ang mga parameter sa pamamagitan ng serial port:中心工作频点、无线带宽以及其它调制参数(pagitan ng bantay、Convolution code rate、星座方式、magpadala ng pakinabang, atbp.)。
- Interface ng paghahatid ng COFDM(Tx):MMCX na upuan ng babae。
- Interface ng TF card,Para sa pag-upgrade at pagpapanatili ng software。
- Power input interface(kapangyarihan):2PIN 2.0mm pitch Phoenix terminal。supply ng boltahe:7V ~ 24V。
- Link LED indicator:发射工作指示灯,数据正常发射时闪烁。
- Power LED indicator:Tagapagpahiwatig ng power input,Palaging naka-on kapag normal ang power supply。
- 发射模块尺寸:73at pagpapanatili(Hindi kasama ang laki ng mga interface device at connector na nakausli sa gilid ng board)、Ang kapal ay mas mababa sa 15mm。
- 支持的COFDM调制参数:
- Configurable Convolutional Encoding Ratio: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
- Configurable guard interval:1/4,1/8,1/16,1/32
- wireless bandwidth:1~8MHz MHz可调,1Hakbang ng KHz
- Configurable RF output power:-94Configurable RF output power(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(Rate ng interface ng hangin):
rate(COFDM wireless transmission system pagkalkula ng transmission rate) COFDM wireless transmission system pagkalkula ng transmission rate (bandwidth(MHz) * 8.0/7.0) / (1+sundalo) * 1512/2048*COFDM wireless transmission system pagkalkula ng transmission rate(COFDM wireless transmission system pagkalkula ng transmission rate) * COFDM wireless transmission system pagkalkula ng transmission rate * 188/204.
以8MHz带宽为例不同的保护间隔,Convolution code rate,星座对应的数据速率及所要求的接收信噪比:
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