TD-SCDMA signal source development system based on ADS
A TD-SCDMA and development system technology, applied in the field of development systems, can solve the problems of poor applicability, poor flexibility, and high cost, and achieve the effects of good applicability, low cost, and strong flexibility
Inactive Publication Date: 2011-04-06
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0005] In order to overcome the shortcomings of poor applicability, poor flexibility and high cost of existing TD-SCDMA signal sources, the present invention provides a development system for TD-SCDMA signal sources based on ADS with good applicability, strong flexibility and low cost
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[0031] The present invention will be further described below in conjunction with the drawings.
[0032] Reference Figure 1 ~ Figure 6 , An ADS-based TD-SCDMA signal source development system, including an ideal signal generation module, a noise module and an ADS addition module, the ideal signal generation module includes:
[0033] The signal source sub-module is used to use ADS's own device that can generate TD-SCDMA original signals. The original signals are uplink and downlink, and the uplink and downlink TS have their own synchronization code interval; the signal generation sub-module is used to convert the signal The downstream signals generated by the source sub-module pass through the power divider and the down-converter, and then are added separately, and then the baseband signal I / Q two channels are obtained through the up-converter and the attenuation channel; each on-road signal generated by the signal source sub-module Directly pass through the weakened channel, and t...
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A developing system of a TD-SCDMA signal source based on an ADS comprises an ideal signal generating module, a noise module and an ADS adding module; the ideal signal generating module comprises a signal source sub-module and a signal generating sub-module; in the noise module, a signal power is switched into a noise power, then switched into a Gaussian noise and double channels of adding back I / Q are distributed; the process comprises: an accumulated power is divided by 250 to obtain a signal average power, then extracted and divided into two channels, multiplied a standard noise source, divided by a square root of a two-time signal-to-noise to obtain the noise of the two channels of I / Q which are respectively added back to obtain a common TD-SCDMA signal that is weakened by multidiameter and is provided with a white Gaussian noise, in the ADS adding module, the obtained I / Q signal is added to the noise signal, then switching the I / Q signal of two channels into a complex signal of one channel through a plurality of converters to obtain a TD-SCDMA signal. The invention has the advantages of good applicability, high flexibility and low cost.
Description
Technical field [0001] The invention relates to a development system of a TD-SCDMA signal source. Background technique [0002] Today's world has entered a rapidly developing information age, and people expect to be able to exchange information anytime, anywhere, in a timely and reliable manner, without being restricted by time and space. As a fast, portable, reliable and convenient personal communication method, mobile communication can solve the requirements for people to communicate with fixed terminals or other objects on mobile carriers during activities, and thus has achieved rapid development, regardless of transmission quality and transmission capacity. And other aspects have achieved tremendous development. However, mobile communication technology will not, and cannot be stopped because of today's achievements. On the contrary, relative to people's requirements for communication quality and transmission capabilities, mobile communication technology will continue and sh...
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IPC IPC(8): H04W24/06H04B17/00
Inventor 华惊宇刘半藤徐志江孟利民周凯
Owner ZHEJIANG UNIV OF TECH