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軟件無線電USRP N300產品概述

USRP N300是一種網絡軟件定義無線電(SDR)，為大規模和分布式無線系統的部署提供可靠性和容錯能力。USRP N300設備通過引入的功能來遠程執行任務，如更新軟件、重新啟動、工廠重置、自我測試、主機PC/ARM調試和監視系統健康狀況，從而簡化了無線電網絡的控制和管理。

RF前端使用AD9371收發器，這是來自AnalogDevice的RFIC技術，提供2X2 MIMO能力，100 MHz瞬時帶寬，擴展頻率范圍10 MHz～6 GHz。

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開源的USRP硬件驅動程序(UHD) API和射頻片上網絡(RFNoC) FPGA開發框架減少了軟件開發工作，并與GNU Radio等多種行業標準工具集成。用戶可以快速原型化和可靠地部署各種SDR應用程序的設計，如無線試驗臺、遠程無線電頭、頻譜監控等。請注意，USRP N300不是為快速調諧而設計的，因而不適合跳頻應用。

基帶處理器

基帶處理器使用Xilinx Zynq-7035 SoC提供大容量用戶可編程FPGA進行實時和低延遲處理，以及雙核ARM CPU用來進行獨立運行。用戶可以直接將應用程序部署到預裝的嵌入式Linux操作系統上，或者通過兩個SFP+端口使用高速接口(如1GigE、10GigE和Aurora)將采樣數據注入到PC上。

同步

USRP N300具有靈活的同步體系結構，支持傳統的SDR同步方法，如時鐘參考、PPS時間參考和GPSDO，從而實現了高通道數MIMO系統。此外，USRP N300采用開源的White Rabbit時序協議，具有的基于以太網的同步特性。在沒有gps的環境中，White Rabbit可以實現長距離的精確基帶同步。有關更多信息，請參見Ettus Research的“Using Ethernet-Based Synchronization on the USRP N3xx Devices"。

軟件無線電USRP N300產品特征

• Reliable and fault-tolerant deployment

• Remote management capability

• Stand-alone (embedded) or host-based (network streaming) operation

• Fully integrated and assembled (the USRP N300 does not support swappable daughtercards)

• 10 MHz to 6 GHz extended frequency range

• Up to 100 MHz of instantaneous bandwidth per channel

• 2 RX, 2TX in half-wide RU form factor[1]

• RX, TX filter bank

• 16 bit ADC, 14 bit DAC

• Configurable sample rates: 122.88, 125, and 153.6 MS/s

• Xilinx Zynq-7035 SoC

• Dual-core ARM Cortex-A9 800 MHz CPU

• Two SFP+ ports (1 Gigabit Ethernet, 10 Gigabit Ethernet, Aurora)

• RJ45 (1 GbE)[2]

• Clock reference

• PPS time reference

• Built-in GPSDO

• Ethernet-based synchronization using White Rabbit protocol

• 1 Type A USB host port

• 1 micro-USB port (serial console, JTAG)

• Watchdog timer

• CE certified

• OpenEmbedded Linux

• USRP Hardware Driver™(UHD) open-source software API version 3.11.0.1 or later

• RF Network on Chip (RFNoC™) FPGA development framework

• Xilinx Vivado 2017.4 Design Suite(license not included)

• GNU Radio support maintained by Ettus Research™ through GR-UHD, an interface to UHD distributed by GNU Radio

• USRP N300 does not contain a Trusted Platform Module

[1]The RF front-end uses an AD9371 transceiver that is independently tunable. The transceiver is capable of 2X2 MIMO operation.

[2]The RJ45 port is used for remote management of the device and does not support IQ streaming.

軟件無線電USRP N300設計框圖

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其他資源

• USRP N300 Getting Started Guide

• USRP N300 Hardware Resources

• USRP N300 Schematics

• Building and Installing UHD and GNU Radio Application Note

• Verifying USRP Operation Application Note

• RFNoC Development Application Note

• Getting Started With UHD and C Application Note

• Using Ethernet-Based Synchronization Application Note

包裝清單

• USRP N300

• RJ45 Ethernet Cable

• SFP+ to RJ45 Adapter

• Micro-USB cable

• Imaged microSD Card

• Power Supply

Recommended Accessories

• 10 Gigabit Ethernet Card for Desktops

• 10 Gigabit Ethernet Cable with SFP+ termination

• Octoclock CDA-2990

• GPIO Expansion Kit

Related Products

• USRP N310

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