通過構造基于0FDM技術的基帶無線通信系統的仿真模型，研究了0FDM技術在瑞利多徑衰落信道下的性能。仿真結果表明采用OFDM技術在瑞利多徑衰落信道下具有良好的抗多徑干擾的性能，插入合適的循環前綴(保護間隔)有效地減少了系統的符號間干擾。今后可進一步加入rf調制解調的仿真，研究頻偏對0FDM子載波之間干擾的影響。
上傳時間： 2016-06-05
上傳用戶：mengmeng
專業的功放外國書籍。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
標簽： Communications Amplifiers Wireless Power for rf
上傳時間： 2016-08-29
上傳用戶：cquliruoyu
Lora rfM95驅動， SX1276 與SX1278擴頻芯片的區別- 天線|rf射頻|微波|雷達技術
上傳時間： 2016-11-28
上傳用戶：bomisme
#define rf_CHANNEL 25 // 2.4 GHz rf channel // Basicrf address definitions μ??·?¨ò? #define PAN_ID 0x2007 #define TX_ADDR 0xBEEF #define RX_ADDR 0x2520 // transmit data ′?ê?êy?Y #define APP_PAYLOAD_LENGTH 1 //ó|ó?3ìDò?o??3¤?è #define MAX_PAYLOAD_LENGTH 104 #define PACKET_SIZE sizeof(perTestPacket_t) #define RSSI_AVG_WINDOW_SIZE 32 // Window size for RSSI moving average // Burst Sizes #define BURST_SIZE_1 1000 #define BURST_SIZE_2 10000 #define BURST_SIZE_3 100000 #define BURST_SIZE_4 1000000
上傳時間： 2017-02-28
上傳用戶：DoubleM
在 USB 設計中，時鐘頻率提供了主要的信號源。USB 差分 DP/DM 對可工作于 480Mbps的高速模式，系統時鐘可工作于 12 MHz、48 MHz 及 60 MHz。由于 USB 電纜扮演了單極天線的角色，因此必須小心設計以防止 rf 電流耦合至纜線上。
上傳時間： 2017-05-21
上傳用戶：ternel
rf射頻檢查，pcb問題確認與排查，rf射頻檢查，pcb問題確認與排查，
上傳時間： 2018-12-29
上傳用戶：aokema124
可以參考一下，不用修改直接可以使用，購買幾個rf模塊即可。
上傳時間： 2019-05-22
上傳用戶：k1k1kevin
This book gives a comprehensive overview of the technologies for the advances of mobile radio access networks. The topics covered include linear transmitters, superconducting filters and cryogenic radio frequency (rf) front head, radio over fiber, software radio base stations, mobile terminal positioning, high speed downlink packet access (HSDPA), multiple antenna systems such as smart antennas and multiple input and multiple output (MIMO) systems, orthogonal frequency division multiplexing (OFDM) systems, IP-based radio access networks (RAN), autonomic networks, and ubiquitous networks.
標簽： Advances Networks Access Mobile Radio in
上傳時間： 2020-05-26
上傳用戶：shancjb
Traditional modulation methods adopted by space agencies for transmit- ting telecommand and telemetry data have incorporated subcarriers as a sim- ple means of separating different data types as well ensuring no overlap between the radio frequency (rf) carrier and the modulated data’s frequency spectra.
標簽： Bandwidth-Efficient Modulation Digital
上傳時間： 2020-05-26
上傳用戶：shancjb
The book you’re holding, physically or electronically, is the result of a very interesting, challenging but also rewarding research project. The research was carried out in different contexts and cooperations but it was centered around the following question: how can we make the rf transmitters of our modern com- munication systems (WiFi, GSM, LTE, and so on) more flexible and more efficient at the same time.
標簽： Continuous-Time Front-Ends Digital
上傳時間： 2020-05-27
上傳用戶：shancjb
