The multi-chip module (MCM) plays an important role in microwave products. Its level of integration directly affect the miniaturization and lightweight of products.So far the vast majority of MCM in the military field still adopt the traditional two-dimensional multi-chip module (2D-MCM) form.For higher integration density,MCM should be transformed into the three-dimensional multi-chip module (3D-MCM) form.The microwave vertical interconnection process,which is the basis for 3D-MCM,is a key technology to realize the miniaturization and light weight of microwave products.But it has greater design complexity in the transmission and matching of microwave signals in the Ku band.On the basis of 3D-MCM simulation,a Ku band power division amplification is designed.Under the same performance index,the volume can be reduced by more than 40% compared with the products adopting traditional 2D-MCM.

The guidance accuracy of precision guided weapons will decrease when the guidance,navigation and control systems are damaged or disturbed by the directed energy weapon.However,the precision guided weapons may still pose a threat to the target.The guidance precision variation of precision guided weapons before and after seeker failure is analyzed by trajectory simulation.Then,the deviation criterion for precision guided weapons is proposed combined with risk-estimate distances of the US army.The criterion can quantitatively evaluate the combat effectiveness of anti-precision guidance weapons operation with directed energy.

To achieve more accurate performance evaluation and functional verification of navigation interference, this essay used two important indicators of carrier phase error and code phase error to measure the interference effect on the receiver for the Costas carrier tracking loop and incoherent lead-delay-delayed-delay-locked-loop commonly used in the GPS tracking process. The above indicators were simulated under different interference scenarios. The simulation results showed that with the increase of the noise to noise ratio or under the same noise to noise ratio, as the interference bandwidth decreases, the carrier phase error and the code phase error deteriorated. That is, the interference effect was positively correlated with the interference power and negatively correlated with the interference bandwidth. The carrier loop tracking error under interference was usually several orders of magnitude smaller than the code tracking error. The simulation results verified the rationality of the assessment method.