After review the developing history of well logging data transmission system and ofdm ( orthogonal frequency division multiplexing ) technology , the principle , design theory and characteristic of ofdm has been studied in detail 通过了解测井数据传输系统的发展以及ofdm ( orthogonalfrequencydivisionmultiplexing )技术的研究成果,详细论述了ofdm的原理、设计思想和性能特点。
During the designing of data transmission system , we should assure the dependability of transmission , descend the transmittal power and decrease the volume . therefore , using error control technology in base - band processing unit is consumedly important 数据传输系统的设计,要保证传输的可靠性,降低通信设备的发射功率,减小体积,因此在基带处理单元中进行差错控制设计具有非常重要的意义。
Chapter 1 sketches bandwidth wireless data transmission system , puts forward full digital modulation and demodulation and construction of software wireless and fpga . to design the burst mode 64 qam demodulator in the special applications 第一章简述了宽带无线数据传输系统,提出了全数字调制与解调的方案,可以采用软件无线电和fpga实现,在特殊应用环境里对64qam突发模式解调器进行fpga硬件设计。
The topic of this paper is high - speed data transmission system , which is a part of an item of the 10th institute of electronic science and technology corporation group : space borne ka - band 300mbps data transmission system and technology 本文所研究的课题是中国电子科技集团公司第十研究所“十五”预研项目:星载ka频段300mbps数传终端技术的一部分,即高速数传系统中的直接数字射频调制/解调技术。
It is very difficult to design a high - quality underwater acoustic data transmission system . in our study , we use frequency diversity and frequency - hopped technology . this method is an effective solution for the isi and signal fading 该方法起到保证mfsk传输系统使用频率中文摘要统使雨频率分集技术能得以有效的实现;并可用于提高mfsk信号检测精度,因此在频率信号检测中它有广泛应用意义,它是本文重要创新之处。