single spread meaning in English

单面涂胶量

In addition , hybrid spread - spectrum communication system is propitious to enhance anti - jamming performance of the system that is make up of direct sequence ( ds ) and frequency hopping ( fh ) , and it can satisfy the require of anti - jamming of systems . it concentrate their virtue and overcome shortage in single spread spectrum style . this paper discusses the aspect in detail
另外，将扩频技术中应用最广泛的两项技术直序扩频( ds )和跳频( fh )结合在一起，构成混合扩频通信系统，有利于提高系统的抗干扰性能，更能满足系统抗干扰的要求，而且将跳频系统和直扩系统的优点集中起来，克服了单一扩频方式的不足。