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 (BPSK-DS-SS) -The signals with spread spectrum of direct sequence type QPSK – DS–SS - Frequency hopping spread spectrum signals (FH-SS)
标签： MODULATION TECHNIQUES modulation SPECTRUM
上传时间： 2017-06-05
上传用户：lht618
The Java Platform, Enterprise Edition 5 (Java EE 5) has two different but complementary technologies for producINg dynamic web content in the presentation tier—namely Java Servlet and JavaServer Pages (JSP). Java Servlet, the first of these technologies to appear, was initially described as extensions to a web server for producINg dynamic web content. JSP, on the other hand, is a newer technology but is equally capable of generating the same dynamic content. However, the way in which a servlet and a JSP page produce their content is fundamentally different servlets embed content into logic, whereas JSP pages embed logic into content.
标签： Java complementary technologie Enterprise
上传时间： 2017-09-04
上传用户：李彦东
The version of CodeWarrior used in the ARM Development Suite cannot export projects in makefile format. Manually producINg makefiles from CodeWarrior projects is not an easy task. The aim of mcp2make is to make the conversion simpler and to require substantially less effort. mcp2make is supplied as a free-of-charge, unsupported utility.
标签： mcp2make
上传时间： 2017-01-19
上传用户：zbxinu
Machine learning is about designing algorithms that automatically extract valuable information from data. The emphasis here is on “automatic”, i.e., machine learning is concerned about general-purpose methodologies that can be applied to many datasets, while producINg something that is mean- ingful. There are three concepts that are at the core of machine learning: data, a model, and learning.
上传时间： 2020-06-10
上传用户：shancjb
摘要：本系统以ICL8038集成块为核心器件，制作一种函数信号发生器，制作成本较低。适合学生学习电子技术测量使用。ICL8038是一种具有多种波形输出的精密振荡集成电路，只需要个别的外部元件就能产生从0.001Hz~30KlHz的低失真正弦波、三角波、矩形波等脉冲信号。输出波形的频率和占空比还可以由电流或电阻控制。另外由于该芯片具有调制信号输入端，所以可以用来对低频信号进行频率调制。关键词：函数信号发生器频率调制Abstract：The system ICL8038 integrated block as the core device，producINg a kind of function signal generator，producINg low cost.Suitable for students to learn the use of electronic technology measurement.ICL8038 is a kind of multi-precision oscillator waveform output integrated circuits，a separate external components only need to be able to generate from the 0.001Hz ~30KHz low-distortion sine wave，triangle wave，square wave pulse signal，etc..Output waveform of the frequency and duty cycle can also be controlled by a currentor resistance.In addition，as the chip has a modulated signal input terminal，it can be used to low-frequency signal is frequency modulation.
上传时间： 2022-07-04
上传用户：zhanglei193
