baseband frequency

Secondly, the characteristic of baseband signal and frequency band signal in RFID system are analyzed.

其次，分析射频识别系统基带信号与频带信号的特性，以及信道噪声与干扰的特点，指明信号的潜在影响因素。

The reason lies in the fact that DPD avoids the complicated radio frequency signal processing, while only deals with the baseband signals at low frequency to facilitate the hardware implementation.

这是由于DPD不涉及复杂的射频信号处理，而只是在低频部分对基带信号进行处理，便于实际硬件实现。

This article introduces the core chip ( baseband chip and radio frequency chip), uses "the Chinese clip group" SCDMA colored screen handset design and application.

介绍了核心芯片（基带芯片与射频芯片）采用中国芯的SCDMA彩屏手机的设计与应用。

This paper introduces the characteristics of hopping frequency technology and the utilization of baseband and RF hopping frequency technology.

文中阐述了跳频技术的特点及基带和射频跳频技术的具体使用方法。

That is mixing the baseband signal ( linear frequency modulation signal and sinusoid signal) with two orthogonal local oscillated signal generated using direct digital synthetic technology to move the baseband signal to intermediate frequency band.

同样运用直接数字合成技术产生基带信号&线性调频信号和正弦信号，与本地载波混频后，将其频谱搬移到中频，完成数字上变频。

Research on the Baseband and Intermediate Frequency Units of Digital Microwave Transceiver

数字微波收发信机（基带、中频）研究

The excitation method which residual signal produced from baseband extraction and high frequency, reproduction is introduced.

对基带提取&高频再生残余信号的激励方式亦作了相应的介绍。