关键词：无线传感器网络；目标计数；精度
摘 要：Target counting in wireless sensor networks has attracted a lot of attention in recent years from both academia and industry. In this chapter, we review various problem formulations and technical approaches proposed in recent literature for target counting. Major existing works are classified into the following four categories: binary counting, numeric counting, energy counting, and compressive counting, based on the sensing capabilities of the network and the underlying theoretical foundations of the technical approaches. Within each category, we summarize the representative works according to their objectives, technical methods, performances, and advantages and disadvantages. Comparative evaluations are provided to illustrate the influence of different sensor network settings on the target counting accuracy. The applicable environments of these algorithms are also discussed at the end of the chapter.