专利汇可以提供Multifrequency signal receiver专利检索,专利查询,专利分析的服务。并且PURPOSE:To decrease the number of multipliers of a linear cyclic digital filter without losing the advantage that a nucleus generating means is unnecessary, by applying high-speed Fourier transform algorithm for frequency thinning. CONSTITUTION:An input signal from a terminal 1 is multiplied at a multiplier 30 by a window function supplied from a window function generator 70. The output of the multiplier 30 is inputted to an adder 44 directly and through a shift register 52, and frequency-thinning high-speed Fourier transform algorithm is applied to the output of the multiplier 30. The output of the adder is supplied through a time slot conversion memory 57 to a linear cyclic digital filter consisting of a one-sampling-period delay register 56, one-word-length shift registers 53 and 54, multipliers 38 and 39, and adders 45 and 46, and the adder 45 generates a real part output and an imaginary part output alternately at intervals of one time slot. Both the outputs are squared by an adder 37 respectively, and the real number part is passed through a shift register 55 and then inputted to an adder 43 simultaneously with the imaginary number part, thereby detecting the presence of the input signal on the basis of the output of the adder.,下面是Multifrequency signal receiver专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
基于维数任意的分块哈达玛测量矩阵的压缩感知信号重建方法 | 2020-05-08 | 554 |
直升机协同定位方法 | 2020-05-12 | 11 |
一种加权多尺度字典学习框架的行星轮轴承故障辨识方法 | 2020-05-08 | 11 |
基于压缩感知的叶片振动特征辨识方法及系统 | 2020-05-08 | 601 |
基于实时决策-实时控制模式的安全稳定控制系统及方法 | 2020-05-11 | 91 |
在大规模MIMO中基于光滑范数的压缩感知信道估计方法 | 2020-05-08 | 51 |
用于MIMO-SCMA系统的低复杂度高译码性能的方法 | 2020-05-08 | 947 |
一种动态检测对象的成像补偿方法、装置、设备和介质 | 2020-05-08 | 151 |
基于核范数的鲁棒音阶轮廓特征提取算法 | 2020-05-11 | 317 |
一种基于图像识别的模块化脱模设备及其工作方法 | 2020-05-11 | 263 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。