询问信号

该水声应答器要求在4000米海深接收测量船发来的询问信号和遥控指令，相应的执行应答、水声通信、深度测量和自检等功能。

The transponder at the underwater 4000 m need receive the interrogating signal and telecommand transmitted by the surveying boat , and carry out the relevant transponder underwater acoustic communication pressure telemetry and diagnostic function .

这部分硬件需要完成的功能是：接收来自主控机的指令向应答器发射相应的询问信号；

The function completed by this part of hardware is : receiving the command from the main control computer and transmitting the enquiry signal to the responder ;

导弹敌我识别系统的核心技术之一是询问信号与应答信号的加密传输。

One of the key technologies in the missile IFF ( identification friend or foe ) system is the encrypting transmission for the questioning and answering signals .

二次雷达是现代航空交通管制系统中的重要组成部分，它是通过对询问信号应答而发现目标的雷达。

Secondary radar is an important equipment in modern air traffic control system , it identify the target by interrogator sending a inquiry toward the aircraft and the aircraft responsing in the air .

采用了直接探测技术对询问光信号进行探测。

The direct detection technology was adopted to detect optical signal .

设计了激光调制的M序列密码器，可极大提高识别器的保密性能和询问-应答信号的质量。

A laser modulated M-sequence coder is designed for target recognition system , thus recognition security and quality of Question and Answer signals can be increased greatly .

从某型机的实际工程背景出发，对其协同敌我识别系统的工作原理和实现方法进行了研究，特别对询问、应答信号编码和解码的实现方法进行了探索。

The working principle and method of IFF systems were analyzed for a certain type of airplane , and particular study was made on how to implement encoding and decoding of the inquiring and responsive signal .