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1.发明申请公开(公告)号：US20080143598A1
公开(公告)日：2008-06-19
申请号：US11904600
申请日：2007-09-27
IPC分类号： G01S1/00
CPC分类号： G01S19/37 , G01S19/21 , G01S19/246
摘要： A method reduces consumption of computational resources in a satellite signal receiver. The method includes segmenting a sample of a received global positioning base band vector, segmenting a sample of a replica code/acquisition signal into segments corresponding in length to the segments of the base band vector, circularly correlating segments of the base band vector to zero padded segments of the code/acquisition signal to form a time domain correlation vector, inserting a portion of the time domain correlation vector in a matrix, continuing to correlate circularly the segments of the received signal sample with zero padded segments of the code signal sample until all of the segments in received signal sample have been circularly correlated, dividing rows in the matrix into blocks that are equal to a smallest increment corresponding to a bit edge, sorting the blocks from the divided rows into zero padded blocks, transforming the zero padded blocks into frequency domain columns, summing the frequency domain columns in different combinations to form a plurality of coherent integration matrices for testing possible bit edge locations and bit values.
摘要翻译： 一种减少卫星信号接收机中计算资源的消耗的方法。 该方法包括对接收到的全球定位基带向量的样本进行分段，将复制码/采集信号的样本分段成与基带向量的段长度相对应的段，将基带向量的段循环地相关至零填充 代码/获取信号的段以形成时域相关向量，将一部分时域相关向量插入矩阵中，继续将接收到的信号样本的片段与代码信号样本的零填充片段循环相关，直到所有 接收信号样本中的段的循环相关，将矩阵中的行分成等于对应于位边缘的最小增量的块，将块从分割行分类为零填充块，将零填充块变换为 频域列，以不同的组合对频域列进行求和以形成多个coheren t集成矩阵，用于测试可能的位边沿位置和位值。
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2.发明授权公开(公告)号：US07920093B2
公开(公告)日：2011-04-05
申请号：US11904600
申请日：2007-09-27
IPC分类号： G01S19/37
CPC分类号： G01S19/37 , G01S19/21 , G01S19/246
摘要： A method reduces consumption of computational resources in a satellite signal receiver. The method includes segmenting a sample of a received global positioning base band vector, segmenting a sample of a replica code/acquisition signal into segments corresponding in length to the segments of the base band vector, circularly correlating segments of the base band vector to zero padded segments of the code/acquisition signal to form a time domain correlation vector, inserting a portion of the time domain correlation vector in a matrix, continuing to correlate circularly the segments of the received signal sample with zero padded segments of the code signal sample until all of the segments in received signal sample have been circularly correlated, dividing rows in the matrix into blocks that are equal to a smallest increment corresponding to a bit edge, sorting the blocks from the divided rows into zero padded blocks, transforming the zero padded blocks into frequency domain columns, summing the frequency domain columns in different combinations to form a plurality of coherent integration matrices for testing possible bit edge locations and bit values.
摘要翻译： 一种减少卫星信号接收机中计算资源的消耗的方法。 该方法包括对接收到的全球定位基带向量的样本进行分段，将复制码/采集信号的样本分段成与基带向量的段长度相对应的段，将基带向量的段循环地相关至零填充 代码/获取信号的段以形成时域相关向量，将一部分时域相关向量插入矩阵中，继续将接收到的信号样本的片段与代码信号样本的零填充片段循环相关，直到所有 接收信号样本中的段的循环相关，将矩阵中的行分成等于对应于位边缘的最小增量的块，将块从分割行分类为零填充块，将零填充块变换为 频域列，以不同的组合对频域列进行求和以形成多个coheren t集成矩阵，用于测试可能的位边沿位置和位值。
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