K-band LFMCW radar may be applied in high-precision range measurement, if its range resolution is made be close to
mm magnitude, good performance is not only needed in hardware design, algorithm selection and optimization is but
also needed. In K-band LFMCW radar system, CZT algorithm is modified according to practical radar echo signal, its
simulation model is built in the System Generator tool software, the corresponding algorithm is implemented in FPGA.
K-band LFMCW radar may be applied in range measurement of great volume storage tank, the outfield experiment was
done according to application, experiment result shows that range measurement precision may reach mm magnitude, the
system can meet the requirement of remote high-precision measurement.