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contains documents related to adaptive beamforming algorithms for Wideband Code Division multiple access and a research article on circular patch antenna for C band altimeter system

A Convex Hull is the smallest convex polygon that contains every point of the set S. A polygon P is convex if and only if, for any two points A and B inside the polygon, the line segment AB is inside P. One way to visualize a convex hull is to put a "rubber band" around all the points, and let it wr ...

SPREAD SPECTRUM MODULATION TECHNIQUES -spread spectrum - those modulation methods that are producing a signal whose spectrum is more wider than of the data signal, the occupied frequency band being independent by the signal of data band. -The signals with spread spectrum of direct sequence type BPSK ...

Frequency domain characterization of los nonfading indoor wireless LAN channel employing frequency and polarization diversity in the 63.4 to 65.4GHz band

A basic Fourier transform identity coupled with an iterative convergence algorithm provides a powerful method to align band-limited signals.

檔案傳輸協定(FTP)為目前相當普遍與廣泛使用之網&#63799 應用。然而在傳統檔案傳輸協定之設計下，資&#63934 傳輸透過Out-of-Band(OOB)之機制，意即透過控制頻道(control channel)傳輸指&#63912 ，而實際資&#63934 傳輸則另外透過特定之通訊埠以及TCP&#63898 線，進&#64008 傳送。如此一&#63789 可確保資&#63934 傳輸之可靠 ...

一种双频微带天线方案的分析与设计

The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capabi ...

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High-Speed, Low-Power Dual Operational Amplifier The AD826 features high output current drive capability of 50 mA min per amp, and is able to drive unlimited capacitive loads. With a low power supply current of 15 mA max for both amplifiers, the AD826 is a true general p ...