公开(公告)号：KR101957488B1

公开(公告)日：2019-03-13

申请号：KR1020170102079

申请日：2017-08-11

Applicant: 충남대학교산학협력단

Inventor： 고영성 ,  유이상 ,  이성민 ,  최지선

IPC: F02K9/52 ,  F02K9/42

公开(公告)号：KR101977892B1

公开(公告)日：2019-05-14

申请号：KR1020170102081

申请日：2017-08-11

Applicant: 충남대학교산학협력단

Inventor： 고영성 ,  유이상 ,  이성민 ,  신동해

IPC: F02K9/96 ,  F02K9/97

公开(公告)号：KR100867356B1

公开(公告)日：2008-11-06

申请号：KR1020070076414

申请日：2007-07-30

Applicant: 충남대학교산학협력단

Inventor： 이성민 ,  김환우 ,  김영제

IPC: H04B1/7097 ,  H04J13/12

CPC classification number: H04B1/7103 ,  H04J13/0059 ,  H04L27/2602

Abstract: A GIA CAZAC(Guard Interval Added Constant Amplitude Zero Auto-Correlation) CDMA system and a transmitting and receiving method thereof are provided to improve a signal to noise ratio of a user terminal by removing a signal of other user in an integral process of a receiver. A GIA CAZAC CDMA system includes a GIA CAZAC CDMA transmitting terminal and a GIA CAZAC CDMA receiving terminal. The GIA CAZAC CDMA transmitting terminal conforms the GIA CAZAC CDMA symbol synchronization, generates the GIA CAZAC sequence, and modulates a base band for receiving request data transmission ratio. The GIA CAZAC CDMA transmitting terminal multiplexes the GIA CAZAC sequence by the baseband signal and multiplies the multiplied result by the radio frequency and transmits the final result. The GIA CAZAC CDMA receiving terminal converts a wireless frequency into a spread spectrum signal, generates the GIA CAZAC conjugate sequence, and multiplies the spread spectrum signal by the GIA CAZAC conjugate sequence, and demodulates the baseband.

Abstract translation: 提供GIA CAZAC（保护间隔加恒定零自动相关）CDMA系统及其发送和接收方法，以通过在接收机的整体处理中去除其他用户的信号来提高用户终端的信噪比 。 GIA CAZAC CDMA系统包括GIA CAZAC CDMA发射终端和GIA CAZAC CDMA接收终端。 GIA CAZAC CDMA发射终端符合GIA CAZAC CDMA符号同步，生成GIA CAZAC序列，并调制接收请求数据传输比的基带。 GIA CAZAC CDMA发送终端通过基带信号复用GIA CAZAC序列，并将相乘结果乘以射频，并发送最终结果。 GIA CAZAC CDMA接收终端将无线频率转换为扩频信号，生成GIA CAZAC共轭序列，并将扩频信号乘以GIA CAZAC共轭序列，并对基带进行解调。