it has adaptive flexibility, high capacity, high bandwidth efficiency and interference robustness 具有自适应灵活性、高容量、高频谱利用率、抗干扰的优点。
to increase the bandwidth efficiency, such a system scheme use the msk modulation method combining with a premodulation filter 文中讨论了以msk调制技术结合预调滤波器提高带宽效率的系统构建方案。
the advantages of the modulation method omsk ( the gaussian pre-filtered minimum shift keying ) include bandwidth efficiency and constant envelope gsm系统中采用了gmsk调制方式,gmsk调制恒定包络,具有较高的频谱利用率。
frequency hopping technology has the capabilities of anti-interference and anti-interception . and it can increase the bandwidth efficiency as well 跳频通信是扩频通信的一种,具有抗干扰、抗截获的能力,并能作到频谱资源共享。
in wireless communication, increasing bandwidth efficiency to transfer more data in the band-limited channel always is a task deserve for attention 无线通信中,提高带宽效率,在有限的信道带宽中传输更多的数据一直是个令人关注的问题。