The theory and algorithm for low altitude target localization based on time delay estimation (TDE) is studied.

研究了基于时延估计的低空目标声测无源定位理论与算法。

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With the high-altitude abort test facing at least a budget-driven delay, the Langley team has proposed conducting one or more less-expensive tests in its place.

With高海拔中止测试至少面临预算驱动的延迟，兰利团队提出在他的地盘进行一个或多个便宜测试。

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With the high-altitude abort test facing at least a budget-driven delay, the Langley team has proposed conducting one or more less-expensive tests in its place.

With高海拔中止测试至少面临预算驱动的延迟，兰利团队提出在他的地盘进行一个或多个便宜测试。

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