针对激光角度欺骗干扰中存在过顶区的问题，提出一种无过顶区的假目标布设方法。首先分析单个假目标的过顶区和有效防护区范围，得出消除过顶区至少需要4个假目标，采用假目标有效防护区覆盖其他假目标过顶区的方法，计算假目标的布设方位。研究结果表明，采用4个假目标按照0°，40°，180°，220°方位布设，能够避免过顶区的形成。此方法对于激光角度欺骗假目标的布设具有理论指导意义。

A flawless deployment of decoys is put forward against the issue that there are over-top areas in angle cheating jamming. The over-top area and effectively-defend area of a single decoy are analyzed, and the conclusion is put forward that four decoys are needed at least to preclude over-top areas. The sites of decoys are calculated under the method which precluding the over-top area by using the effectively- defend area of other decoy. The conclusion is that the over-top areas can be precluded by deploying four decoys follow the azimuthal angle 0°, 40°, 180° and 220°. There is a theoretical directive significance over the deployment of decoys in laser angle cheating jamming.