Description: 本书介绍雷达对抗原理，包括雷达对抗概述、雷达信号频率的测量、雷达的方向测量和定位、雷达侦察的信号处理、雷达侦察作用距离与截获概率、遮盖性干扰、欺骗性干扰、干扰机组成及干扰能量的计算以及对雷达的无源对抗技术-The book introduced the principle of radar confrontation, including an overview of radar confrontation, radar signal frequency measurement, the direction of the radar measurements and positioning, radar signal processing, radar detection and interception of the probability range, to cover sexual harassment, deceptive jamming, jammer component and interference with the energy calculation as well as against the passive radar technology Platform: |
Size: 6046720 |
Author:zhang |
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Description: 毫米波图像存在分辨率低的缺点，该程序在WRLA算法的基础上，进一步采用投影算法，能有效改善毫米波图像的分辨率-Images acquired from Passive Millimeter-Wave (PMMW) radiometer have poor resolution due to limited aperture dimension. Therefore, Super-Resolution Algorithm (SRA) is a key component for PMMW imager. SRA realizes spectrum extrapolation, however, spectrum in-band is deteriorated too. Wiener-Richardson-Lucy Algorithm (WRLA) recovers spectrum in-band by Wiener filter, and extrapolates spectrum out-of-band by Richardson-Lucy Algorithm (RLA). WRLA can avoid spectrum deterioration in passband, but its ability for spectrum extrapolation is limited also. We propose an improved algorithm to solve this problem. This algorithm, which has built constraints according to characteristics of PMMW imaging, uses Projection-Onto-Convex-Sets (POCS) technique to enhance the WRLA s performance, so it is termed as POCS-WRLA. Platform: |
Size: 19456 |
Author:姜正茂 |
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Description: 无源光通信器件（光无源器件），很难找的pdf版本，光通信是通信行业未来的趋势。-Pdf version of passive optical component, hard to find, optical communication is the future trend of the communications industry. Platform: |
Size: 3559424 |
Author:tiphen |
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Description: 太阳能逆变器被动元件测试，内容详实，易于理解-Passive component testing for PV invert，description is very clear，easy to understand。 Platform: |
Size: 1604608 |
Author:sunbaichao |
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Description: 用Cadence画图时，需自己设计元件封装。幸好有Mentor Graphics IPC-7351 LP Viewer 10.2，这是个基于IPC-7351通用标准的浏览软件，可以查看各种器件的封装。
IPC-7351标准覆盖所有类型的无源及有源器件件的焊盘图形设计，包括电阻器、电容器、MELFS、TSSOPS、QFPS、球形阵列封装、方形扁平无引脚封装、小外形无引线封装等。IPC-7351为每个元件提供了三个焊盘图形几何形状，即高元件密度、中等元件密度、低元件密度，软件中对应的CAD data库分别是SMM/ SMN/ SML，就是各个库中对应的相同的封装的焊盘尺寸不一样：
高元件密度SMM：焊盘最小。
中等元件密度SMN：焊盘一般。
低元件密度SML：焊盘最大情况，最牢固，如需翻修，最方便。-When using Cadence drawing, need to design packaging. Fortunately have a Mentor Graphics IPC- 7351 LP Viewer 10.2, this is a browser software based on IPC- 7351 general standard, can see all kinds of devices of encapsulation.
The IPC- 7351 standard covers all types of passive and active components of bonding pad of graphic design, including resistor, capacitor, MELFS, TSSOPS, QFPS, ball grid array, encapsulation, small square flat without pin shape leadless package, etc. IPC- 7351 for each component provides three solder graphics geometry, namely high cell density, the density of secondary element density, low element, the corresponding CAD software data library is SMM/SMN/SML, respectively is corresponding to the same in every library encapsulation of bonding pad size is not the same as:
High component density SMM: solder is minimal.
Secondary component density SMN: bonding pad.
Low element density SML: bonding pad is biggest, the most strong, for renovation, the most convenient t Platform: |
Size: 8027136 |
Author:叶胜东 |
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Description: BUTTON LPC2148
The Virtual System Modeling (VSM) component complements the PROTEUS package ... standard and high resolution passive STN, and 36-hit active matrix TFT LCD panels. ...... Antenna impedance 50 CI Data rate 2.4 kbps Transmit power Approximately 1 mW ...... DLL interfaces provided for application specific models. Platform: |
Size: 1024 |
Author:QBIT |
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Description: TRC105是一款单芯片，多通道，低功耗的UHF收发器。 它专为300至510 MHz频率范围内的低成本，大容量，双向短程无线应用而设计。 TRC105是FCC＆ETSI认证。 所有关键的RF和基带功能都集成在TRC105中，最大限度地减少了外部元件数量，并简化和加快了设计。 微控制器，RF SAW滤波器，12.8 MHz晶振和一些无源器件都是创建完整，可靠的无线电功能所需要的。 TRC105集成了一组低功耗状态以减少电流消耗并延长电池寿命。 TRC105的小尺寸和低功耗使其成为各种短程无线电应用的理想选择。 TRC105符合指令2002/95 / EC（RoHS）。(TRC105 is a single chip, multi-channel, low power UHF transceiver. It is designed for low cost, high volume, two-way short range wireless applications in the 300 to 510 MHz frequency range. The TRC105 is FCC & ETSI certifiable. All critical RF and base-band functions are integrated in the TRC105, minimizing external component count and simplifying and speeding design-ins. A microcontroller, RF SAW filter, 12.8 MHz crystal and a few passive components are all that is needed to create a complete, robust radio function. The TRC105 incorporates a set of low-power states to reduce current consumption and extend battery life. The small size and low power consumption of the TRC105 make it ideal for a wide variety of short range radio applications. The TRC105 complies with Directive 2002/95/EC (RoHS).) Platform: |
Size: 3112960 |
Author:zbm138 |
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