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    • 1. 发明授权
    • Integrated CMOS spectrum analyzer for on-chip diagnostics using digital autocorrelation of coarsely quantized signals
    • 集成CMOS频谱分析仪,用于使用数字自相关粗量化信号进行片上诊断
    • US07218091B1
    • 2007-05-15
    • US11485390
    • 2006-07-13
    • Keith A. JenkinsStanislav Polonsky
    • Keith A. JenkinsStanislav Polonsky
    • G01R23/00
    • G01R23/16
    • An integrated spectrum analyzer for performing on-chip power spectrum measurements, includes a digital autocorrelator that includes an analog input for inputting analog signal samples from a chip, an analog-to-digital converter for converting the analog signal samples into digital signal samples, a storage register for storing a first converted digital signal sample for a period of time, a digital multiplier for multiplying the first stored digital signal after the period of time with a second undelayed digital signal sample to produce a product of multiplication, and an accumulator for accumulating a plurality of products of multiplication for each new period of time. The digital autocorrelator computes an autocorrelation function based on the analog signal samples and is integrally formed on the chip for performing power spectrum measurements on the analog signal samples to compute the autocorrelation function.
    • 一种用于进行片上功率谱测量的集成频谱分析仪,包括数字自相关器,其包括用于输入来自芯片的模拟信号样本的模拟输入,用于将模拟信号样本转换成数字信号样本的模数转换器, 存储寄存器,用于存储一段时间内的第一转换数字信号采样;数字乘法器,用于将所述时间段之后的第一存储数字信号与第二未延迟数字信号采样相乘以产生乘法乘积;以及累加器,用于累加 多个产品的乘法每个新的时间段。 数字自相关器基于模拟信号样本计算自相关函数,并且一体形成在芯片上,用于对模拟信号采样进行功率谱测量,以计算自相关函数。