Fig. 1. Schematic of pulsar interferometry via intensity correlation

Fig. 2. Simulation results of intensity correlated measurement of pulsar X-ray source. (a) Coherence curves obtained by intensity correlation calculation; (b) relationship between the measurement error of coherent distance and the relative spectrum width

Fig. 3. Corrected results of intensity correlated measurement. (a) Corrected coherence curves; (b) relationship between the measurement error of coherent distance and the relative spectrum width after correction

Fig. 4. Results of corrected coherence curves in noisy environment. (a) Noise ratio is 10%; (b) noise ratio is 100%; (c) noise ratio is 300%; (d) noise ratio is 500%

Fig. 5. Coherence curves obtained by fitting. (a) Noise ratio is 10%; (b) noise ratio is 100%; (c) noise ratio is 300%; (d) noise ratio is 500%

Fig. 6. Influence of noise ratio on the accuracy of coherence distance correction

Fig. 7. Experiment setup of simulated pulsar interferometry via intensity correlation

Fig. 8. Experiment results of simulated pulsar interferometry via intensity correlation. (a) Spectrum of the simulated source; (b) coherence curves obtained by experiment; (c) coherence curves separated in different wavelengths; (d) relationship between coherence distance and wavelength