Linear Frequency Modulation Pulse Compression(LFM-PC) radar is taken as an example to study the influence mechanism of three typical deception jamming(direct delay forwarding jamming, the interrupted-sampling and repeater jamming, frequency-shifting jamming) on the ranging and angle measurement of radar. By controlling the amplitude, phase and delay of the jammer, it can produce coherent and non-coherent synthetic deception jamming on the radar. Signal level simulation shows that by controlling the delay and frequency, a large number of false targets can be generated in the distance dimension to form a distance deception effect. By controlling the amplitude and phase delay, multi-source jamming can be formed in the angle dimension to form the angle deception effect, which is the unique advantage of distributed cluster jamming. Among the three jamming patterns, direct delay forwarding jamming and frequency-shifting jamming is more likely to form angle deception effects; the interrupted- sampling and repeater jamming is more likely to form deception jamming in the distance dimension due to the inherent intermittentness, and the angular dimension interference effect is slightly worse.