跳频接收机中调谐高放电路的设计  

Design of Tuning High Frequency Amplifier Circuit in the Frequency-hopping Radio

作　　者：彭小峰[1] 雷李[1] 张里[1] 

机构地区：[1]重庆工学院信息与控制技术实验中心,重庆400050

出　　处：《信息安全与通信保密》2007年第1期93-95,共3页Information Security and Communications Privacy

摘　　要：论文根据开关电容阵调节电容带通滤波器的原理,设计出了能够快速跟踪调谐,并且具有较高灵敏度的快速调谐滤波器。为了保证跳频接收机信号抗干扰的能力,前端采用了两个窄带快速跟踪调谐滤波器,使得跳频接收机前端能够快速跟踪跳频变化从而改善接收机的信噪比,使跳频通信设备更加高效可靠。Based on the principle in which the switching capacitor array adjusts the capacitor bandpass filter, this article designs a fast-tuning filter with relatively high sensitivity, which can track and tune rapidly. In order to ensure the anti-jamming capacity of the signal from the frequency-hopping radio, two narrowband, fast tracking and tuning filters are employed in the front, and then the front of frequency-hopping radio can track the frequency-hopping change rapidly, which will improve the SNR of the radio and make the frequency-hopping communication equipments more effective and reliable.

关 键 词：快速调谐 品质因素 增益 跳频 

分 类 号：TN858[电子电信—信息与通信工程]