摘要
为提高随机码脉冲测距雷达的测距分辨率必须保证扩频码的调制解调带宽,在研制速率为150M的高速随机码发生器的基础上实现了2.4G/900M载波的宽带调制解调器。该调制器采用ADI公司的调制芯片ADL5375,解调器采用ADL5382,基带信号与调制解调器之间采用低电压差分标准LVDS连接传输。测试结果表明:采用该种调制解调电路能保证解调正确并具有较高的信噪比。
In order to raise the ranging resolution of random code pulses radar, the modem bandwidth must be ensured. The broadband modem with the 2.4G/900M carrier was designed which can transmit 150 Mbit/s high- speed random code. ADL5375 was used as the modulator chip; ADL5382 was used as demodulator; Signal transmitted in LVDS between the baseband signal generator and the modem. The test results showed that this kind of modem circuit can demodulate correctly and obtain higher SNR.
出处
《电子器件》
CAS
北大核心
2013年第3期344-348,共5页
Chinese Journal of Electron Devices
基金
湖南省教育厅科学技术研究项目(12C0835)
湖南省教育厅科学技术研究项目(10C1057)
湖南省科技厅科技计划项目(2013GK3145)
