The complex weighting vectors at other frequencies satisfying the request of wideband constant beamwidth can be deduced from the one at the reference frequency.

其它频率点上满足宽带恒定束宽要求的复权向量可以根据参考频率上的复数权值通过折算求得。

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Indexes have morphed from their market-matching beta roots to complex trading- and securities-weighting strategies that are supposed to add excess returns, known as alpha.

FORBES: No Free Lunch from Alternative Indexes

Crude oil accounts for a hefty 23% weighting, and along with gasoline, heating oil and natural gas, the energy complex totals nearly 40% of the entire index.

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