- 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:ọdụ ụgbọ mmiri netwọk,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 oghere oghere,可对接矽海达参数配置面板(SconA、SconB或SconC)。Onye ọrụ nwere ike ịtọ parampat site na ọdụ ụgbọ mmiri:中心工作频点、无线带宽以及其它调制参数(etiti oge nche、Ọnụọgụ koodu mgbanwe、星座方式、nyefee uru, wdg.)。
- COFDM nnyefe interface(Tx):MMCX oche nwanyi。
- TF kaadị interface,Maka nkwalite na mmezi ngwanrọ。
- Ngwa ntinye ike(ike):2PIN 2.0mm pitch Phoenix ọnụ。voltaji ọkọnọ:7V ~ 24V。
- Njikọ LED egosi:发射工作指示灯,数据正常发射时闪烁。
- Ihe ngosi ọkụ ọkụ:Ngosi ntinye ike,Na-agbanye mgbe ọ bụla ọkụ ọkụ na-adị mma。
- 发射模块尺寸:73SconB ma ọ bụ SconC(Agụnyeghị nha nke ngwaọrụ interface na njikọ na-esi na nsọtụ osisi ahụ pụta)、Ọkpụrụkpụ erughị 15mm。
- 支持的COFDM调制参数:
- Ratio ngbanwe Convolutional nwere ike ịhazi:1/2,2/3,3/4,5/6,7/8
- 可配置的星座方式:QPSK / QAM16 / QAM64
- Ụdị IFFT:2K
- Ogologo oge nche nwere ike ịhazi:1/4,1/8,1/16,1/32
- ikuku bandwit:1~8MHz MHz可调,1KHz nzọụkwụ
- Ike mmepụta RF nwere ike ịhazi:-94ewezuga nha nke ngwaọrụ interface na njikọ ndị na-esi na nsọtụ osisi pụta(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(Ọnụego interface ikuku):
Rate(COFDM ikuku nnyefe usoro mgbako ọnụego) COFDM ikuku nnyefe usoro mgbako ọnụego (bandwit(MHz) * 8.0/7.0) / (1+Gi) * 1512/2048*COFDM ikuku nnyefe usoro mgbako ọnụego(COFDM ikuku nnyefe usoro mgbako ọnụego) * COFDM ikuku nnyefe usoro mgbako ọnụego * 188/204.
以8MHz带宽为例不同的保护间隔,Ọnụọgụ koodu mgbanwe,星座对应的数据速率及所要求的接收信噪比:
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