Based on software defined radio theory, the digital IF acquisition system has the features of hardware-defined and system re-configured.
建构于软件无线电理论的数字化中频接收系统，具备硬件可定义、功能可重配置的特点。
This paper designed a full digital modulator and a full digital demodulator for the millimeter wave communication machine based on the soft radio theory.
本文利用软件无线电的思想为毫米波保密通信机设计了一个全数字的调制解调器。
Radio signals received from the galaxy's centre back up the black hole theory.
从该星系中心接收到的无线电信号证实了黑洞理论。
Finally, several valuable research directions are put forward, such as seeking a new wireless communications theory adapted to analyze nonsinusoidal UWB impulse radio, etc.
最后提出几个值得探索的研究方向，如：寻求一种新的适合分析非正弦窄脉冲的UWB系统的无线通信理论等。
In theory, specialist agencies should collect fees for every song that radio stations play and distribute them to the owners of the Copyrights.
理论上，专业代理机构应该向广播电台收取每支歌播放费用，然后将这些费用分发到每个版权所有者手里。
Based on the theory of electromagnetism, the equations that determine the direction of the simulation target in RFSS (Radio Frequency simulation System) are derived.
依据电磁场理论，直接从三元组出发推导了射频仿真系统目标视在角位置方程。
The spin - down rate has been measured for almost every radio pulsar, and theory indicates that it depends on the strength of the star 's magnetic field.
这种自转变慢的速率，几乎每一颗无线电波霎都量得到，而理论指出，此速率和星体的磁场强度有关。
Based on the spread spectrum communication theory, combine digital signal-processing chip DSP and FPGA, this article researches and designs the receiver system for regional radio navigation.
本课题以扩频通信为理论基础，结合目前广泛使用的数字信号处理芯片DSP和FPGA，研究了区域无线电导航系统接收机数字信号处理平台。
Software Radio has become the focus of research in Communications. Digital IF, one of its key technologies, is typical application of multi-rate signal processing theory.
软件无线电是目前通信领域研究的热点，其关键技术之一数字中频技术是多速率信号处理理论的典型应用。
In this paper, a DSP-based HF channel simulator within audio bandwidth is designed and implemented based on the concerned theory on the effects caused by the ionosphere in radio wave.
根据电离层影响无线电波传输的有关理论，本文设计并实现了一种基于DSP的话音带宽短波信道模拟器。
This paper describes the basic theory of speech compression encoding and decoding algorithm in TETRA (terrestrial trunked radio) system.
研究了陆地集群无线通信（TETRA）数字集群移动通信系统的语音压缩编解码算法的基本原理。
In this paper, a method based on the fuzzy judgement and Bayesian theory to evaluate the model of storage reliability of radio fuse using simple sample data is presented.
本文用模糊综合评判方法与贝叶斯理论相结合，给出由小样本实验数据来确定电子系统长储可靠性模型的方法。
Chapter 2 sets forth the structure of IF (Intermediate Frequency) digital Software Radio, the critical theory of Software Radio and the signal processing technique about it.
第二章介绍了中频数字化软件无线电的结构，并阐述了软件无线电的关键理论和软件无线电中的信号处理技术。
The scatter spectrum of radio waves by a dusty plasma has been studed with the dynamic factor which was derived from the kinetic theory.
用等离子体动力论导出的动力形状因子研究尘埃等离子体的散射功率谱。
Tumor combined therapeutic system, a kind of medical instrument to restrain and kill tumor, is based on radio frequency heating technique and biological heating effect theory.
肿瘤联合治疗系统是一种利用射频加热技术和热生物效应原理治疗人体肿瘤的医疗设备。
The system is designed mainly around the radio-controlled application of relevant theory and research.
该系统设计主要是围绕无线电遥控的相关理论和应用进行研究。
In terms of magneto-ionic theory, a self-consistent model of ionospheric electrojet artificially modulated by powerful HF radio waves is presented.
磁离子理论，自洽的人工调制强大的HF无线电波电离层的电喷模型。
This article introduces the theory of FM radio synchronous broadcasting system with satellite transporting as well as it's system construction and the problems needed to be noticed.
介绍了采用卫星传输节目的调频同步广播系统的工作原理、系统构成及实施时要注意的问题。
This article introduces the theory of FM radio synchronous broadcasting system with satellite transporting as well as it 's system construction and the problems needed to be noticed.
介绍了采用卫星传输节目的调频同步广播系统的工作原理、统构成及实施时要注意的问题。
A novel adaptive ultrawideband (UWB) narrowband interference suppression method is presented based on cognitive radio (CR) theory.
提出了一种基于认知无线电的自适应超宽带(uwb)窄带干扰抑制方法。
The Nobel prizes of physics had awarded pulsar researchers two times for discovering the first radio pulsar and checking the general theory of relativity with strong gravity, respectively.
由于第一颗射电脉冲星的发现以及对强引力场下广义相对论的检验，脉冲星研究者已经两次获得了诺贝尔物理学奖。
Theory, operating features and interface relations of three correction modes for the inertial navigation; Short-Range Radio Navigation, Long-Range Radio Navigation and Visual, are presented.
从校正方式组成及原理入手，详细地介绍了某型飞机导航系统惯导几种校正方式的使用特点及相互交联关系。
We elaborate the theory of localization algorithms, and implement the algorithm combined with radio wave propagation model in underground complex environment.
给出了该算法进行定位的原理，并结合井下复杂环境中的电波传播模型来实现该算法。
Radio carbon dating puts the origin of the shroud between 1260 C. E. and 1390 C. E., consistent with the theory that it was a forgery.
根据碳同位素测定，该亚麻布产于1260年至1390年之间，不过许多人坚持认为这是伪造的。
In Chapter 2, it introduces the basic theory of the Software Radio, which includes the architecture of Software Radio, the sampling theory and multi-rate signal process.
第二章介绍了软件无线电的基本架构、软件无线电中的信号采样理论及多速率信号处理技术。
And in electromagnetic theory the dielectric of sea water is not constant. After the reflection from ocean surfaces, the amplitude and phase of radio wave can be both changed.
电磁理论上，海水是非均匀的导电媒质，经海面反射后的电波其幅度和相位均会发生变化。
The technique of electromagnetic waves in SLF (Super Low Frequency) frequency band can be investigated in the light of geophysical theory combined with radio-physical theory.
超低频 （SLF）电磁波技术利用地球物理和无线电物理相结合的原理 ，由人工产生大功率电磁波信号。
The technique of electromagnetic waves in SLF (Super Low Frequency) frequency band can be investigated in the light of geophysical theory combined with radio-physical theory.
超低频 （SLF）电磁波技术利用地球物理和无线电物理相结合的原理 ，由人工产生大功率电磁波信号。
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