根据中频带通采样雷达噪声频谱在线监测方法，实现环境噪声和外部干扰频谱在线监测。

According to method inspecting on-line of noises spectrum in the IF-sampling radar. Realised that inspecting noises and interference of environment on-line.

youdao

针对强混沌背景中频带内信号难以提取这一问题，提出了基于正交小波变换与小波软阈值滤波相结合的方法。

The extraction of signal embedded in frequency band of chaotic background is always an important and difficult problem in chaotic signal processing field.

youdao

针对低信噪比的雷达回波信号数据采集，文中给出了中频带通采样方案，并选用PC I_9820高速采集卡实时采集和存储数据。

Aiming at data acquisition of radar echo signal with low SNR, IF band-pass sampling concept is proposed. High-speed acquisition card PCI_9820 is used to sample in real-time and store data.

youdao