In repetition frequency sorting method, sorting capability of the sequence of the difference histogram method (SDIF) to the PRI jitter radar pulses is poor. Although the PRI transform method can sort PRI jitter radar signal, the amount of computation overlarge is difficult to meet the demand for real-time sorting. Because of the poor sorting capability of SDIF algorithm to jitter PRI, this paper presents an improved algorithm of SDIF, sorts PRI jitter radar signal well, can meet the needs of real-time sorting.

In order to achieve real-time monitoring of high-voltage lines, a temperature measurement system for transmission lines based on the online passive FBG sensors is proposed. The temperature linearity of the FBG sensors designed by bi-metal package is greater than 0.999, which guarantees great mechanical strength and temperature measurement performance. The sensors are fixed to the lines by a specially designed fixture. This temperature measurement system for transmission lines based on optical sensing is running on 110kV line with strong scalability, which could monitor temperature changes of the conductor in real time.

The individual combat positioning system mentioned in this paper can track individual effectively and protect his safety. The system consists of a number of portable terminals and a base station. The portable terminals collect the positioning information of individual and keep communicating with the base station. The base station queries the terminal location information and display the location of individual on the map real-time.

The real-time radar signal sorting is one of the key technologies for electronic reconnaissance, first analyzes the defects of traditional main sorting algorithms, and then proposes a comprehensive main sorting algorithm. The method first uses the SDIF algorithm to sort PRI fixed and PRI stagger radar signal, then uses dynamic expansion association method to search PRI jitter radar signal. When using the SDIF algorithm, in order to improve the efficiency of extraction of PRI, first taking amplitude pretreatment, then only accumulate the signals whose amplitude meet certain requirements. After extracting PRI, extract to the original full pulse sequence. Simulation results show that the method of sorting has high accuracy and good real-time.