投票 发表于 2025-3-27 00:28:54

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昏暗 发表于 2025-3-27 02:29:58

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冲击力 发表于 2025-3-27 05:40:50

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nominal 发表于 2025-3-27 12:34:20

M. Wakihara,H. Ikuta,Y. UchimotoP) and raypath plot. The sun warms the surface waters generating a gradient of decreasing temperature with depth to about 100 ft depth. Thereafter temperature slowly increases with depth. Sound speed increases with water temperature causing the acoustic wavefront to refract downward near the surface

同音 发表于 2025-3-27 16:10:22

Ambiguity Functions,nge (r), delay (τ), velocity (v), and Doppler (ø, β) are related by . and . or . for the narrow and wideband representations respectively and a monostatic line of sight geometry. In this context, an uncertainty function (UF) is a complex two dimensional function and its associated real ambiguity fun

打折 发表于 2025-3-27 18:53:33

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Spartan 发表于 2025-3-28 01:13:08

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拔出 发表于 2025-3-28 04:29:25

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Metastasis 发表于 2025-3-28 07:20:29

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guzzle 发表于 2025-3-28 12:19:41

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查看完整版本: Titlebook: Echo Signal Processing; Dennis W. Ricker Book 2003 Springer Science+Business Media New York 2003 Signal.Symbol.acoustics.algebra.communica