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发明公开
CN101162915A 一种用于无线传感网络的基带发射方法及其发射装置 无效 - 撤回

一种用于无线传感网络的基带发射方法及其发射装置
摘要：
本发明涉及无线传感网络的基带发射方法和装置。无线传感领域要求发射端具有较小的功耗，目前常用IS－95标准不适合应用于此领域。本发明提供的基带发射方法包括如下步骤：对信息数据进行信道编码处理；分别进行I和Q信道扩频，获得I和Q信道数据；分别对I和Q信道数据进行基带成形；对导频信号分别进行I和Q信道导频信号扩频，获得I和Q信道导频扩频信号；分别对I和Q信道导频扩频信号进行基带成形；将I信道数据与I信道导频扩频信号相加，作为I路输出信号；将Q信道数据与Q信道导频扩频信号相加，作为Q路输出信号；分别对I和Q路输出信号用正交载波进行调制；将调制后的I和Q路输出信号正加并发射。
摘要（英）：

The invention is related to a baseband emission method and a device of a wireless sensor network. The wireless sensing field requires that an emission end has a less power and the prior common IS-95 standard is not applicable to the field. The baseband emission method provided by the invention includes the following steps: the information data is processed with a channel coding. An I and a Q channel spread spectrums are used to obtain I and Q channel data. The I and the Q channel data is processed with a baseband shaping. A pilot signal is processed with spread spectrum of the pilot signal of I and Q channels respectively to obtain a pilot spread spectrum signal of I and Q channels. The pilot spread spectrum signals of I and Q channels are respectively processed with the baseband shaping. The I channel data plus the pilot spread spectrum signal of the I channel serves as an output signal of the I channel. The Q channel data plus the pilot spread spectrum signal of the Q channel serves as the output signal of the Q channel. The I and the Q output signals are modulated with a quadrature carrier respectively. The modulated I and Q output signals are added and emitted.

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