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    • 2. 发明授权
    • Interference detection and characterization method and apparatus
    • 干扰检测和表征方法和装置
    • US5144642A
    • 1992-09-01
    • US593433
    • 1990-10-05
    • Aaron WeinbergCunninghasm, KenDaniel UrbanLaurence Mailaender
    • Aaron WeinbergCunninghasm, KenDaniel UrbanLaurence Mailaender
    • H04B17/00
    • H04B17/345
    • The interference detection and characterization system of this invention supports modern communication systems which have to contend with a variety of intentional and unintentional interference souces. As an add-on to existing communications equipment, the invention employs novel signal processing techniques to automatically detect the presence of communications channel irregularities in near real-time and alert the attending operator. Information provided to the operator through a user-friendly interface is used to characterize the type of interference and its degree of severity. Once characterized, the information is used by the operator to take corrective actions including the activation of alternative communication plans or, in some instances, mitigation of the interference. Since output from the system of this invention lends itself well to expert system and neural network environments, such systems could be employed to further aid the operator. The unique interference signal measurements provided by the system makes it useful in applications well beyond those for which it was originally intended. Other uses for which the invention has shown great potential include bit error rate estimators, communication channel scanners, and as laboratory test equipment to support receiver development and performance verification.
    • 本发明的干扰检测和表征系统支持必须应对各种有意和无意的干扰源的现代通信系统。 作为现有通信设备的附加物,本发明采用新颖的信号处理技术来近似实时地自动检测通信信道不规则的存在,并提醒主管人员。 通过用户友好界面提供给操作员的信息用于表征干扰类型及其严重程度。 一旦表征,信息被操作者用来采取纠正措施,包括激活替代通信计划,或者在某些情况下减轻干扰。 由于本发明的系统的输出本身适用于专家系统和神经网络环境,所以可以使用这样的系统来进一步帮助操作者。 系统提供的独特的干扰信号测量使其在远远超出其原始应用范围的应用中非常有用。 本发明显示出巨大潜力的其他用途包括误码率估计器,通信信道扫描仪,以及支持接收机开发和性能验证的实验室测试设备。
    • 6. 发明授权
    • Method of receiver processing of CDMA signals in a CDMA system
    • CDMA系统中CDMA信号的接收机处理方法
    • US07660340B2
    • 2010-02-09
    • US10872359
    • 2004-06-22
    • Laurence Mailaender
    • Laurence Mailaender
    • H04B1/00
    • H04B1/7105
    • The method of receiver processing of CDMA signals in a CDMA system includes first converting a received signal in the time domain to a received signal in the frequency domain, and equalizing the received signal in the frequency domain using a set of frequency domain weights. The equalized received signal in the frequency domain is converted to an equalized received signal in the time domain. The set of frequency domain weights are adaptively adjusted at a symbol rate of the received signal in the time domain based on an error signal produced from the received signal in the frequency domain and a frequency domain representation of a known pilot signal of the CDMA system.
    • CDMA系统中的CDMA信号的接收机处理方法包括首先将时域中的接收信号转换为频域中的接收信号,并且使用一组频域权重对频域中的接收信号进行均衡。 频域中的均衡接收信号在时域中被转换成均衡的接收信号。 基于从频域中的接收信号产生的误差信号和CDMA系统的已知导频信号的频域表示,在时域中以接收信号的符号速率自适应地调整频域权重集合。