一种宽带数字噪声产生系统的实现

采用常规VCO产生调频射频噪声，尽管具有射频带宽宽、设备简单的优点，但存在瞄准精度低、带内平坦度差的缺点，而采用数字式噪声的方案则具有瞄准精度高、带内平坦度好、统计特性好的特点。文中介绍了一种基于数字技术的噪声产生系统，能够产生宽带干扰噪声、梳状波干扰噪声和频率凹波干扰噪声三种噪声形式。

Implementation of a Broadband Digital Noise Generator

Using traditional VCO to generate a RF noise has disadvantages of low aiming precision and poor band flatness, though it is simple and has wide bandwidth. But using digital noise can improve system performance including obtaining perfect statistical property. This paper introduces a digital noise generating system. It can generate three kinds of jamming noise such as broadband noise, pectinate noise and noise of concave frequency.