Title:
【発明の名称】スペクトラム拡散通信システムにおけるコヒーレント通信方法および装置
Document Type and Number:
Japanese Patent JP3464002
Kind Code:
B2
Abstract:
A method and apparatus is provided for encoding and decoding to facilitate coherent communication. In encoding, reference symbols are inserted into a stream of input data symbols to form a reference coded stream of input data symbols. Subsequently, the reference coded stream of input data symbols are prepared for transmission over a communication channel by spreading the reference coded stream of input data symbols with a spreading code prior to transmission over the communication channel. In decoding, a received communication signal is despread with a spreading code to derive a stream of reference samples and a stream of data samples. The channel response is estimated by utilizing the stream of reference samples. Finally, an estimated data symbol is detected from the stream of data samples by utilizing the estimated channel response.
Inventors:
Ring, fuyun
Application Number:
JP52000694A
Publication Date:
November 05, 2003
Filing Date:
February 16, 1994
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04K1/00; H03M13/00; H04B1/707; H04B7/08; H04L25/02; (IPC1-7): H04B1/69; H04K1/00
Domestic Patent References:
| JP468724A | ||||
| JP3182133A |
Other References:
三瓶ほか，陸上移動通信用１６ＱＡＭのフェージングひずみ補償方式，電子情報通信学会技術研究報告，日本，（社）電子情報通信学会，１９８８年，Ｖｏｌ．８８，Ｎｏ．３９，ＲＣＳ８８−１，ｐｐ１−８
須永ほか，陸上移動通信用１６ＱＡＭ変復調器の試作，電子情報通信学会技術研究報告，日本，（社）電子情報通信学会，１９８８年，Ｖｏｌ．８８，Ｎｏ．３９，ＲＣＳ８８−２，ｐｐ９−１６
須永ほか，陸上移動通信用１６ＱＡＭ変復調器の試作，電子情報通信学会技術研究報告，日本，（社）電子情報通信学会，１９８８年，Ｖｏｌ．８８，Ｎｏ．３９，ＲＣＳ８８−２，ｐｐ９−１６
Attorney, Agent or Firm:
Shinsuke Ohnuki