摘  要:引力時間延遲效應是愛因斯坦廣義相對論的一個重要理論預言，1964年夏皮羅提出了一個用雷達回波信號來驗證引力時間延遲效應的實驗方案，該方案也成為了驗證廣義相對論的第四個重要的實驗。本文首先介紹了引力時間延遲效應的基本理論，并介紹了驗證引力時間延遲效應的理論和實驗方法。其次，以水星、金星為例，分別計算了水星、金星處于上合時雷達回波信號的引力時間延遲，并對計算得到的理論計算值與實驗測量值進行了分析討論。最后，對影響雷達回波延遲實驗結果的因素進行了探討和分析。

關鍵詞：引力時間延遲；廣義相對論；引力場；雷達波

ABSTRACT:Gravity time delay effect is one important theory predicted of the general relativity by Einstein, 1964, Shapiro suggested a experiment plan of using radar signals to verify gravity the effect of time delay which also became the fourth important experiment to verify general relativity first. This text firstly introduces the basic effect of gravity time delay, and introduces the theory and experimental method about verifying gravity time delay effect .Secondly, This article takes two physical models as example，Venus and Mercurya， and calculates gravitational time delay of radar spreading to surface of Venus and Mercurya and return in the locations of “close above”， and to compare and  discuss  the calculated results and the theory of time delay. Finally, the experimental results of the impact of the radar echo of delay factors are discussed and analyzed. 

Key words: Gravity time delay; General relativity; The gravitational field;Radar wave