A novel method on designing bispectral windows is proposed in this letter. Compound functions based on a function with binary quadric form, starting from the symmetry characteristic of three-order moments are used as ...A novel method on designing bispectral windows is proposed in this letter. Compound functions based on a function with binary quadric form, starting from the symmetry characteristic of three-order moments are used as the 2-D windowfunctions. Two approaches on how to find the expressions of the compound functions are discussed in detail. One is to approximate the compound function after being Taylor expanded under the Minimum Mean Square Error (MMSE) criteria. Another is to compound the hyperbolic secant function and the binary quadric function directly. According to theoretical analysis, the first type new windows have been proved as slightly better than the conventional ones, the second type new windows are much better than the conventional ones, and the bispectral estimation mean square error approximates to 0.展开更多
The U.S. has seen a slow but steady growth in housing over the last few years. Both new housing starts and existing home sales reached eight-year highs in June. Just as significantly, the rental market remains tight t...The U.S. has seen a slow but steady growth in housing over the last few years. Both new housing starts and existing home sales reached eight-year highs in June. Just as significantly, the rental market remains tight throughout the country. This is good news ）＇or the textile industry, as new abodes often mean new window treatments, towels that match the new bathrooms, and fresh bed linens that complement the surroundings. And just as they do when shopping for apparel, consumers want the best quality for their money.展开更多
文摘A novel method on designing bispectral windows is proposed in this letter. Compound functions based on a function with binary quadric form, starting from the symmetry characteristic of three-order moments are used as the 2-D windowfunctions. Two approaches on how to find the expressions of the compound functions are discussed in detail. One is to approximate the compound function after being Taylor expanded under the Minimum Mean Square Error (MMSE) criteria. Another is to compound the hyperbolic secant function and the binary quadric function directly. According to theoretical analysis, the first type new windows have been proved as slightly better than the conventional ones, the second type new windows are much better than the conventional ones, and the bispectral estimation mean square error approximates to 0.
文摘The U.S. has seen a slow but steady growth in housing over the last few years. Both new housing starts and existing home sales reached eight-year highs in June. Just as significantly, the rental market remains tight throughout the country. This is good news ）＇or the textile industry, as new abodes often mean new window treatments, towels that match the new bathrooms, and fresh bed linens that complement the surroundings. And just as they do when shopping for apparel, consumers want the best quality for their money.
