Using real-time spectrum analysis to efficiently troubleshoot interference issues in wireless systems

摘要

Interference is becoming more common and more severe in today's increasingly crowded wireless spectrum. Given the complex and dynamic nature of many wireless signals, equally dynamic measurement tools are needed to effectively troubleshoot and maintain deployed systems. One such tool is real-time spectrum analyzer (RTSA) capability, which provides high-speed, gap-free measurements and a variety of informative display modes. When these functions are added to a handheld spectrum or combination analyzer, field personnel can use a single instrument to detect, locate, and resolve issues such as co-channel interference and uplink interference (Fig. 1). Continuing advances in digital signal processing (DSP) and analog-to-digital converters (ADCs) are putting RTSA within reach of more users.