Single frequency modulation pulse signal source for while-drilling layer range radar of horizontal well

The invention discloses a single frequency modulation pulse signal source for a while-drilling layer range radar of a horizontal well. The single frequency modulation pulse signal source comprises a continuous wave signal source and a pulse signal source, wherein the continuous wave signal source is used for generating continuous wave signals which are used as signals to be modulated; and the pulse signal source is used for generating pulse signals which are used as carrier wave signals for modulating the signals to be modulated. The single frequency modulation pulse signal source for a while-drilling layer range radar of a horizontal well not only can guarantee that the while-drilling layer range radar is higher in detection resolution, but also can guarantee that the emission signals can be emitted to the stratum, with high efficiency and high fidelity. Therefore, the single frequency modulation pulse signal source can effectively improve the detection depth of the while-drilling layer range radar.