【摘 要】
:
随着计算机技术和微电子技术迅速发展,无线电通信技术继模拟通信技术、数字通信技术之后发展到第3代通信技术——软件无线电。它是根据技术的发展和极大地满足军队对军事装备
论文部分内容阅读
随着计算机技术和微电子技术迅速发展,无线电通信技术继模拟通信技术、数字通信技术之后发展到第3代通信技术——软件无线电。它是根据技术的发展和极大地满足军队对军事装备互通性的客观需求而提出的一项新技术。 一、软件无线电的功能、体系结构 1.软件无线电的功能 (1)
With the rapid development of computer technology and microelectronic technology, the development of radio communication technology follows analog communication technology and digital communication technology to the third generation communication technology - software radio. It is a new technology proposed in the light of technological developments and to meet the objective needs of the military for interoperability of military equipment. First, the function of software radio, architecture 1. Software radio functions (1)
其他文献
In recent year,several kinds of new sensor based sorting technologies have been developed,among which X-ray transmission(XRT)sorting which can detect precis
Solvent impregnated resins(SIRs)are effective means for separation of metal ions from their mixtures.However,their durability is limited due to the leakage
在展望10年后通信网的时候,让我们先回顾一下10年来日本通信网的变化。10年前,除小规模的电报网外,电话网是唯一的公共网。1972年以前,电话网几乎只用于语音通信,后来由于联
The carbonation process for stabilization of heavy metals in mine tailings was investigated.This investigation was performed by placing samples in a CO2 cha
基于突发公共事件的监测预警视角对河北省蔬菜批发市场500位供货商进行了问卷调查,运用二元Logit模型,实证分析批发市场供货商蔬菜质量安全可追溯体系参与意愿的影响因素.研
目的:探讨原发性十二指肠恶性肿瘤的诊断方法及其手术治疗的效果。方法:回顾分析经过病理证实的50例原发性十二指肠恶性肿瘤的病理类型、临床表现、诊断以及治疗手段。结果:
一、科研概况:一九八七年全省食用菌栽培技术、机械配套、生态生理、遗传育种、野生食用菌驯化等方面都取得了大的进展,如:平菇微孔塑料袋立体栽培技术,解决了长期以来由于
本文描述了一种快速预测天线远场方向图的方法,在这种方法中使用了抛物柱面天线作为探测天线。处理过程包括一维阵列转换,这种方法的验证是用抛物面反射体实测的方向图与预计
Soil is one of the main natural resources of human survival environment,is also an important part of the ecological environment.At present,the problem of so